Compressor Handbook - Embraco

Doc. Code Emission Revision Date Page 

MP01EH 2000-04 07 20-02 1 - 98 

COMPRESSORS 

HANDBOOK 

GENERAL INDEX 

This handbook on hermetic compressors is designed for those working in the refrigeration field, 

whom already know the basic techniques of domestic and commercial refrigeration, and air conditioning. 

It is intended to be a guide in the selection of Embraco Europe compressors and their 

correct application. 

GENERAL INDEX 

1 TECHNICAL DOCUMENTS 11 

1.1 GENERAL CATALOG 11 

1.2 GENERAL GUIDE OF COMPRESSORS 11 

1.3 TECHNICAL BULLETIN 11 

1.4 ELECTRICAL COMPONENT CATALOG 12 

1.5 COMPRESSOR HANDBOOK 12 

1.6 ELECTRONIC CATALOG 12 

2 GENERAL INFORMATION 13 

2.1 COMPRESSOR RANGES 13 

Table 1 Compressor Series - Application - Refrigerants .................................................................................13 

2.2 APPLICATIONS 13 

Table 2 Applications...............................................................................................................................................13 

2.3 STARTING TORQUE CLASSIFICATION 14 

Table 3 Electrical motor starting torque classification....................................................................................14 

2.4 ELECTRIC MOTOR TYPES 14 

Table 4 Electrical motor types..............................................................................................................................14 

2.5 VOLTAGES & FREQUENCIES 15 

Table 5 Voltages & Frequencies ..........................................................................................................................15 

2.6 COMPRESSOR ELECTRICAL COMPONENTS 16 

Table 6 Electrical components..............................................................................................................................16 

2.7 COMPRESSOR COOLING TYPES 16 

Table 7 Cooling Types............................................................................................................................................16 

2.8 COMPRESSOR NAMEPLATES - IDENTIFICATION DATA 17 

Figure 1 Metallic Nameplates (used up to 2001) ...............................................................................................17 

Figure 2 Adhesive Nameplates ..............................................................................................................................17 

Figure 3 Series NB/NE - Adhesive Nameplates (used up to 2003) .................................................................18 

Figure 4 Series BP - Adhesive Nameplates (used up to 2004) .........................................................................18 

Figure 5 Series EM - Adhesive Nameplates ........................................................................................................18


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GENERAL INDEX 

Figure 6a Compressor Model Identification Code .............................................................................................. 19 

Figure 6b Series EM - Compressor Model Identification Code ........................................................................ 20 

Figure 7 Compressor Bill of Materials Code ..................................................................................................... 21 

Figure 8 Manufacturing Date Code ..................................................................................................................... 21 

2.9 WIRING DIAGRAMS 22 

Table 8 Wiring Diagram ....................................................................................................................................... 23 

2.9.1 Compressor Wiring Diagram - EM Series - RSIR ............................................................................ 24 

Figure 9 RSIR Version terminal board with PTC starting device .................................................................. 24 

2.9.2 Compressor Wiring Diagram BP-NB Series – RSIR-RSCR .......................................................... 24 

Figure 10 RSIR and RSCR Standard Version ....................................................................................................... 24 

2.9.3 Compressor Wiring Diagram BP-T-NB-NE Series (electrical components without 

terminal board) – RSIR-CSIR .............................................................................................................. 25 

Figure 11 RSIR and CSIR standard version ......................................................................................................... 25 

2.9.4 Compressor Wiring Diagram T Series (electrical component with 


Figure 12 RSIR - CSIR terminal board version ................................................................................................... 25 

2.9.5 Compressor Wiring Diagram NB-NE Series (electrical component with 


Figure 13 RSIR and CSIR terminal board version .............................................................................................. 26 

2.9.6 Compressor Wiring Diagram NB Series (electrical component with 

terminal board) – RSIR-RSCR ............................................................................................................. 26 

Figure 14 RSIR and RSCR terminal board version with PTC starting device ............................................... 26 

2.9.7 Compressor Wiring Diagram T-J Series – PSC-CSR ...................................................................... 27 

Figure 15 PSC and CSR Versions .......................................................................................................................... 27 

2.9.8 Compressor Wiring Diagram NE-T-J Series – CSR BOX .............................................................. 27 

Figure 16 CSR BOX with internal or external overload protector ................................................................... 27 

2.9.9 Compressor Wiring Diagram T-J Series – CSIR .............................................................................. 28 

Figure 17 Standard CSIR (with the relay T.I. 3CR or G.E. 3ARR2) ................................................................ 28 

2.9.10 Compressor Wiring Diagram T-J Series – CSIR BOX .................................................................... 28 

Figure 18 CSIR BOX (with relay T.I. 3CR or G.E. 3ARR2) .............................................................................. 28 

2.9.11 Compressor Wiring Diagram J Series – CSIR BOX ........................................................................ 29 

Figure 19 CSIR BOX (with relay G.E. 3ARR3 or AMF RVA) ........................................................................... 29 

2.9.12 THREE PHASE ...................................................................................................................................... 29 

Figure 20 Three Phase ............................................................................................................................................. 29 

3 COMPRESSOR SUPPLY CONDITIONS 30 

3.1 ELECTRICAL INSULATION 30 

3.2 “IP” DEGREE OF PROTECTION 30 

Table 9 IP Degree .................................................................................................................................................. 30 

3.3 THE COMPRESSOR SHELL HYDROSTATIC STRENGTH 30 

3.4 DEHYDRATION 31 

Table 10 Maximum level of residual humidity .................................................................................................... 31 

3.5 PAINTING 31 

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GENERAL INDEX 

3.6 COMPRESSOR PRESSURISATION 31 

3.7 OIL CHARGE 31 

Table 11 Lubricant oils used in the compressors ................................................................................................32 

3.8 MINIMUM QUANTITY OF LUBRICANT 32 

Table 12 Minimum quantity of oil ..........................................................................................................................32 

3.9 SPECIAL VERSIONS 33 

Table 13 Special Version Examples .......................................................................................................................33 

4 COMPRESSOR PACKAGING 34 

4.1 MULTIPLE CARTON DISPOSABLE PACKAGE 34 

Table 14 Characteristics of carton multiple packages .......................................................................................34 

Figure 21 One Box + Shipping Skid .......................................................................................................................34 

Figure 22 Two Boxes + Shipping Skid ...................................................................................................................34 

4.1.1 Compressor Identification Marks .........................................................................................................35 

Figure 23 Package Label ..........................................................................................................................................35 

4.2 RETURNABLE WOOD PACKAGE 36 

Table 15 Characteristics of returnable multiple wood packages .....................................................................36 

Figure 25 “EM” (120 compressors) ........................................................................................................................36 

Figure 26 “EM” (100 compressors) ........................................................................................................................37 

Figure 27 “NB” (80 compressors) ..........................................................................................................................37 

4.2.1 Compressor identification marks ..........................................................................................................37 

4.3 PACKAGE FOR ELECTRICAL COMPONENTS AND ACCESSORIES 38 

Figure 28 Components packing label .....................................................................................................................38 

4.4 SINGLE PACKAGE 39 

Figure 29 Single Compressor Package ..................................................................................................................39 

5 HANDLING, TRANSPORTING AND STORING 

COMPRESSORS 40 

5.1 HANDLING 40 

5.2 TRANSPORTING 40 

5.2.1 Shipment by container ............................................................................................................................40 

Table 16 Load Characteristics for 20' container.................................................................................................41 

5.2.2 Shipments by truck ..................................................................................................................................41 

Table 17 Characteristics of load by truck.............................................................................................................41 

5.3 ACCEPTABLE COMPRESSOR POSITIONS DURING TRANSPORTATION 42 

Table 18 Acceptable compressor position during transportation.....................................................................42 

5.4 STORAGE 43 

Table 19 Maximum height for multiple throwaway carton packages ..............................................................43 

Table 20 Maximum height for multiple returnable packages............................................................................44 

MP01EH 2000-04 07 20-02


 

COMPRESSORS 

HANDBOOK 

GENERAL INDEX 

INFORMATION ABOUT CORRECT COMPRESSOR 

INSTALLATION 45 

45 

 

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....................................................................................................................... 46 

............................................................................................................................................... 46 

 

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46 

47 

48 

 

................................................................................................................... 49 

Table 21 R134a Physical Characteristics ............................................................................................................ 49 

Table 22 R134a Ecological Characteristics ........................................................................................................ 49 

 

................................................................................................................... 52 

Table 23 R600a Physical characteristics ............................................................................................................. 52 

Table 24 R600a Ecological Characteristics....................................................................................................... 52 

 

.................................................................................................................. 54 

Table 25 R 404A Physical Characteristics .......................................................................................................... 54 

Table 26 R404A Ecological Characteristics....................................................................................................... 54 

 

.................................................................................................................. 57 

Table 27 R407C Physical Characteristics.......................................................................................................... 57 

Table 28 R407C Ecological Characteristics...................................................................................................... 57 

 

..................................................................................................................... 60 

Table 29 R290 Physical Characteristics .............................................................................................................. 60 

Table 30 R290 Ecological Characteristics .......................................................................................................... 60 

62 

Table 31 Suggested Filter Dryer............................................................................................................................ 62 

Table 32 Inconvenient caused by moisture in the system .................................................................................. 62 

63 

Table 33 Choice of Capillary ................................................................................................................................. 63 

70 

Figure 30 Rubber Grommets Assembling Process .............................................................................................. 70 

Table 34 Rubber Grommets.................................................................................................................................... 71 

Figure 31 Rubber Grommets ................................................................................................................................... 71 

73 

73


 

COMPRESSORS 

HANDBOOK 

GENERAL INDEX 

Table 35 Suggested tightening torques..................................................................................................................74 

Figure 32 Rotalock Valve .........................................................................................................................................74 

Figure 33 Valve Position ..........................................................................................................................................75 

75 

Table 36 Fan Coolers Characteristics...................................................................................................................75 

76 

76 

Table 37 Maximum Refrigerant Charge................................................................................................................76 

77 

77 

RUNNING DATA AND COMPRESSOR CHECKING 

PROCEDURES 78 

78 

 

................................................................78 

 

..................................................................................................79 

 

......................................................................................................79 

 

Table 38 Discharge gas maximum pressures .......................................................................................................79 

 

..........................................................................................................................79 

 

..................................................................................................................80 

 

........................................................................................................................................82 

 

Table 39 Pressure limit value..................................................................................................................................82 

 

..........................................................................................................................82 

 

............................................................................................................................................83 

......................................................................................................................................................83 

83 

83 

Table 40 Troubleshooting and service chart ........................................................................................................84 

87 

 

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COMPRESSORS 

HANDBOOK 

GENERAL INDEX 

95 

 

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....................................................................................................... 95 

HOW TO RETURN SUPPLIED PRODUCTS 

TO EMBRACO EUROPE 96 

96 

97

INDEX OF FIGURES 


MP01E 2000-04 0 20-02 7 - 98 

COMPRESSORS 

HANDBOOK 

Figure 1 cilate N M a m 2 ot setalpe u desu( 0 p 0 )1 

71 

Figure 2 N evisehdA a setalpem 

71 

Figure 3 N seireS N/B A - E d eviseh N a m 2 ot setalpe u desu( 0 p 0 )3 

81 

Figure 4 B seireS A - P evisehd N a m ot setalpe u desu( 02 p )40 

81 

Figure 5 E N seireS evisehdA - a M setalpem 

81 

Figure 6a noitacifitnedI edoC M oC ledo roserpm 

91 

Figure 6b edoC noitacifitnedI ledoM rosserpmoC 02 - 

Figure 7 slaireta edoC M fo lliB oC roserpm 

12 

Figure 8 etaD edoC gnirutcafuna M 

12 

Figure 9 ecived gnitrats htiw TP C draob lanimret noisreV RISR 

42 

Figure 10 noisreV dradnatS dna RCSR RISR 

42 

Figure 11 noisrev dradnats RISC dna RISR 

52 

Figure 12 noisrev draob lanimret RISC - RISR 

52 

Figure 13 noisrev draob lanimret RISC dna RISR 

62 

Figure 14 ecived gnitrats htiw TP C noisrev draob lanimret dna RISR CSR R 62 

Figure 15 SP C 

dna S snoisreV R 

72 

Figure 16 rotcetorp daolrevo lanretxe C ro S lanretni R B O htiw X 

72 

Figure 17 atS 3 .I.T C dradn C yaler eht R 3 ro htiw( RIS .E.G A R R )2 

82 

Figure 18 C RIS B 3 .I.T O C htiw( yaler X R 3 ro .E.G A R R )2 

82 

Figure 19 C RIS B O 3 yaler htiw( X .E.G A R R A 3 ro M F R V )A 

92 

Figure 20 Three Phase 29 

Figure 21 Carton Package Unit 

43 

Figure 22 Wood Package Unit 

43 

Figure 23 Package Label 35 

Figure 25 “EM” (120 oc m )sroserp 

63 

Figure 26 “EM” (100 oc m )sroserp 

73 

Figure 27 “ N B ” 08( oc m )sroserp 

73 

Figure 28 C 

o m p o n e stn p a nikc al g b le 

83


 

COMPRESSORS 

HANDBOOK 

Figure 29 Single Compressor Package 39 

Figure 30 Rubber Grommets Assembling Process 70 

Figure 31 Rubber Grommets 71 

Figure 32 Rotalock Valve 74 

Figure 33 Valve Position 75

INDEX OF TABLES 


 

COMPRESSORS 

HANDBOOK 

Table 1 Compressor Series - Application - Refrigerants 13 

Table 2 Applications 13 

Table 3 Electrical motor starting torque classification 14 

Table 4 Electrical motor types 14 

Table 5 Voltages & Frequencies 15 

Table 6 Electrical components 16 

Table 7 Cooling Types 16 

Table 8 Wiring Diagram 23 

Table 9 IP Degree 30 

Table 10 Maximum level of residual humidity 31 

Table 11 Lubricant oils used in the compressors 32 

Table 12 Minimum quantity of oil 32 

Table 13 Special Version Examples 33 

Table 14 Characteristics of carton multiple packages 34 

Table 15 Characteristics of returnable multiple wood packages 36 

Table 16 Load Characteristics for 20' container 41 

Table 17 Characteristics of load by truck 41 

Table 18 Acceptable compressor position during transportation 42 

Table 19 Maximum height for multiple throwaway carton packages 43 

Table 20 Maximum height for multiple returnable packages 44 

Table 21 R134a Physical Characteristics 49 

Table 22 R134a Ecological Characteristics 49 

Table 23 R600a Physical characteristics 52 

Table 24 R600a Ecological Characteristics 52 

Table 25 R 404A Physical Characteristics 54 

Table 26 R404A Ecological Characteristics 54 

Table 27 R407C Physical Characteristics 57 

Table 28 R407C Ecological Characteristics 57 

Table 29 R290 Physical Characteristics 60


 

COMPRESSORS 

HANDBOOK 

Table 30 R290 Ecological Characteristics 60 

Table 31 Suggested Filter Dryer 62 

Table 32 Inconvenient caused by moisture in the system 62 

Table 33 Choice of Capillary 63 

Table 34 Rubber Grommets 71 

Table 35 Suggested tightening torques 74 

Table 36 Fan Coolers Characteristics 75 

Table 37 Maximum Refrigerant Charge 76 

Table 38 Discharge gas maximum pressures 79 

Table 39 Pressure limit value 82 

Table 40 Troubleshooting and service chart 84

1 TECHNICAL DOCUMENTS 


COMPRESSORS 

HANDBOOK 

Chapter 

TECHNICAL DOCUMENTS 

 

 

 

1.1 GENERAL CATALOG 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.2 GENERAL GUIDE OF COMPRESSORS 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.3 TECHNICAL BULLETIN

Wiring diagrams 


MP01E 2000-04 0 20-02 12 - 98 

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HANDBOOK 

Chapter 

TECHNICAL DOCUMENTS 

Graphs of “Mass Flow”, “Current Input”, “Watt Input”, “Refrigeration Capacity”, as a function 

of the evaporating temperature (within the characteristic field) at two or more condensing 

temperatures. 

1.4 ELECTRICAL COMPONENT CATALOG 

This catalog allows the identification of the electrical components to be supplied with the Compressor 

Model and its Bill of Lading. 

The information contained in the catalog is: 

Reference of Compressor Model & Bill of Lading. 

Compressor electrical data (Voltage & frequency, motor type, nominal Watt, nominal FLA, 

LRA, and resistance of the electrical motor). 

Starting relay & O/L protector characteristics and code numbers used by Aspera and suppliers. 

Run & start capacitors (if applicable) characteristics and Aspera code number. 

“Terminal board assembly” or “Electrical 

box” Aspera code number. 

The use of electrical components different that those approved by Embraco can cause 

abnormal working and even severe damage to compressor. 

1.5 COMPRESSOR HANDBOOK 

The Handbook includes useful information about compressors and their components and addresses 

the correct application of the compressors with various refrigerants. 

1.6 ELECTRONIC CATALOG 

The Electronic Catalog is available on our web site “www.embraco.com”.

2 GENERAL INFORMATION 

2.1 COMPRESSOR RANGES 


MP01E 2000-04 0 20-02 13 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 

GENERAL INFORMATION 

Table 1 indicates the refrigerant types used in the compressors available on catalog for each series 

and according to the different applications. 

Table 1 Compressor Series - Application - Refrigerants 

SERIES 

APPLICATION 

LBP MBP HBP AC 

EM 

– 

R134a - R600a - R404A - R290 R404A - R290 R134a - R600a – 

NB 

R134a - R600a - R404A - 

R507 

R404A - R507 R22 - R134a – 

NE 

R22 - R134a - R404A - R507 - 

R290 

R404A - R507 

R290 

R22 - R134a - 

R600a 

R22 - R407C 

T - NT 

R22 - R134a - R404A - R507 - R404A - R507 

R290 

R290 

R22 - R134a - 

R22 - R407C 

NJ R22 - R134a - R404A - R507 R404A - R507 R22 - R134a R22 - R407C 

The available models in the different applications, the thermodynamic and electrical performances, 

the external dimensions and the approved electrical components, are listed in the General Catalog, 

Technical Bulletin, Electrical Components Catalog and Electronic Catalog, which 

complement this Handbook. 

2.2 APPLICATIONS 

Table 2 Applications 

TYPE DESCRIPTION 

(Low Back Pressure) 

Models at low evaporating temperatures, suitable for applications with working 

LBP 

evaporating temperatures lower than -20 °C; for instance refrigerators, freezers, 

frozen food cabinets, frozen food display cases, display windows, etc. 

(Medium Back Pressure) 

Models for medium evaporating temperatures, suitable for applications with work- 

MBP 

ing evaporating temperatures higher than -20 °C; such as fresh food cabinets, drink 

coolers, ice makers etc. 

(High Back Pressure) 

Models at high evaporating temperatures, suitable for applications with working 

HBP 

evaporating temperatures higher than -15 °C; such as fresh food cabinets, drink 

coolers, ice makers, dehumidifiers etc. 

(Air Conditioning) 

Models for air conditioning with R22, suitable for applications with positive work- 

AC 

ing evaporating temperatures, such as air conditioners, heat pumps and dehumidifiers.

2.3 STARTING TORQUE CLASSIFICATION 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

Table 3 Electrical motor starting torque classification 


LS T 

 

LST 

 

 

H S T 

 

HST 

 

 

2.4 ELECTRIC MOTOR TYPES 

 

Table 4 Electrical motor types 


R S I R 

 

LST 

 

 

 

RSIR 

 

 

 

 

 

 

PTC 

C S I R 

CSIR 

 

 

R S C R 

RSCR 

 

 

 

P S C 

 

 

 

PSC

2.5 VOLTAGES & FREQUENCIES 

ASPERA 

CODE 


MP01E 2000-04 0 20-02 15 - 98 

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HANDBOOK 

Chapter 



Capacitive Start & Run 

CSR version with capacitive run and start windings. Same as PSC motor but with a 

CSR start capacitor in series with the start winding. A potential starting relay, calibrated 

for each motor, disconnects the start capacitor at the end of the start. The motor is 

characterized by a high starting torque (HST) and high efficiency. 

Three phase 

3Ø 

Three-phase windings with star connections. 

Table 5 are indicates the various rated voltages and frequencies with the corresponding operating 

ranges and minimum starting voltages of the compressors. 

PLEASE NOTE: Not all voltages and frequencies are available on all compressors. For the availability 

of different voltages and frequencies for each model and refrigerant type consult the Aspera Compressor 

Catalog. For the different versions availability, please check with the Embraco Europe Sales & Marketing 

Department. 

Table 5 Voltages & Frequencies 

RATED VOLTAGE & FREQUENCY (1) 

VOLTAGE WORKING RANGE MINUMUM START 

VOLTAGE 

@ 50 HZ @ 60 HZ @ 50 HZ @ 60 HZ 

A 220-240 V 50 Hz 1~ 198 V ÷ 254 V 187 V 

B 200-230 V 50 Hz 1~ / (208-230 V 60 Hz 1~) 180 V ÷ 244 V 187 V ÷ 244 V 170 V 177 V 

~1 zH 05 V C 02 

V 242 ÷ V 02 V 781 

D 208-230 V 60 Hz 1~ / (200 V 50 Hz 1~) 180 V ÷ 220 V 187 V ÷ 244 V 170 V 177 V 

G 115 V 60 Hz 1~ / (100 V 50 Hz 1~) 90 V ÷ 110 V 103 V ÷ 127 V 85 V 98 V 

J 230 V 60 Hz 1~ / (200 V 50 Hz 1~) 180 V ÷ 220 V 207 V ÷ 253 V 170 V 195 V 

K 200-220 V 50 Hz 1~ / (230 V 60 Hz 1~) 180 V ÷ 234 V 207 V ÷ 253 V 170 V 195 V 

M 380-420 V 50 Hz 3~ / (440-480 V 60 Hz 3~) 332 V ÷ 445 V 396 V ÷ 509 V 323 V 374 V 

N 200-240 V 50 Hz 1~ / (230 V 60 Hz 1~) 180 V ÷ 254 V 207 V ÷ 253 V 170 V 195 V 

P 380 V 60 Hz 3~ 

342 V ÷ 418 V 

323 V 

~1 zH 06/05 V Q 01 

V 58 01 V 58 ÷ V 09V 01 

~3 zH 06/05 V R 02 V 02 180 V ÷ 220 V 081 V V 071 071 V 

T 220-230 V 50 Hz 1~ 198 V ÷ 244 V 187 V 

~1 zH 06 V U 02 

V 242 ÷ V 02 V 781 

~1 zH 05 V 032 

V 352 ÷ V 702 V 591 

~ W zH 06/05 V 02 

V 781V 781 242 ÷ V 0 

(1) Voltage/Frequency range indicated in brackets may not be included in Agency Approvals.

2.6 COMPRESSOR ELECTRICAL COMPONENTS 


MP01E 2000-04 0 20-02 16 - 98 

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HANDBOOK 

Chapter 


The intended electrical components for each type of electric motor are indicated in Table 6 and 

are usually supplied as compressor equipment. 

Only under some circumstances agreed on with the customer, can the electrical components be 

excluded from the compressor equipment. 

Table 6 Electrical components 

MOTOR 

TYPE 

OVERLOAD 

PROTECTOR 

STARTING DEVICE 

CURRENT VOLTAGE 

RELAYS RELAYS 

PTC 

CAPACITORS 

START RUN 

RSIR YES YES (1) YES (1) 

CSIR YES YES YES 

RSCR YES YES YES 

PSC YES YES 

CSR YES YES YES YES 

3Ø YES 

(1) For some RSIR models in the NB series, a PTC starting device can be used as an alternative to the current relay. 

For the RSIR compressors in the BP and EM series, the PTC starting device is standard. Only some specific HBP models in the BP 

series can use a current relay. 

2.7 COMPRESSOR COOLING TYPES 

Table 7 lists the various cooling types intended for each compressor model, as indicated in the 

Compressor Catalog and Technical Bulletin. 

For information on the proper installation and cooling of the compressor, consult section 

6.10 - COMPRESSOR COOLING. 

Table 7 Cooling Types 


Static cooling: the compressor does not require forced cooling, but it must be 

S 

installed so that the ambient air can adequately cool to avoid overheating. 

Fan cooling: the compressor requires forced cooling through the use of a fan, sized 

F 

as indicated in section 6.10 “Compressor Cooling”. 

With oil cooler: coil positioned in the lower internal part of the housing, immersed 

OC in the lubrication oil, where the gas coming from the first part of the heat 

exchanger circuit circulates.

2.8 COMPRESSOR NAMEPLATES - IDENTIFICATION DATA 


COMPRESSORS 

HANDBOOK 

Chapter 


Legend 1 Identification data in the nameplates: 

1 

8 

2 

9 

3 10 

4 

11 

5 

12 

6 13 

7 

Figure 1 Metallic Nameplates (used up to 2001) 

MADE IN 

THERMALLY 

PROTECTED 

Figure 2 Adhesive Nameplates 

6 

13 

9 

7 

THERMALLY PROTECTED 

5 

8 

13 

 

1 

3 4 

3 5 

3 

NO START WITHOUT STARTING DEVICE 

2 12 6 

3 

1 

3 

8 

R 134a 

2 

9 

aT001 

aT003

Figure 3 Series NB/NE - Adhesive Nameplates (used up to 2003) 

Figure 4 Series BP - Adhesive Nameplates (used up to 2004) 

Figure 5 Series EM - Adhesive Nameplates 


MP01E 2000-04 0 20-02 18 - 98 

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Chapter 


Suction arrow on right side aT005 

THERMALLY 

PROTECTED 

13 

SUCTION 

8 

MADE IN ITALY 

THERMALLY PROTECTED 

3 

4 

5 

2123 

6 

2120 

10 

MADE IN ITALY 

9 

SUCTION 

10 

6 

R 134a 

SUCTION 

1 

2 

11 

9 

1 

2 

3 

4 5 

11 

8 

1 

THERMALLY PROTECTTED 

4 5 3 

11 IPH 

NO START WITHOUT STARTING DEVICE 

2 12 6 

9 

aT009 

aT019

Figure 6a Compressor Model Identification Code 

COMPRESSOR SERIES 

EM-NB-NE-T-NT-NJ 

ENERGY EFFICIENCY LEVEL 

M First Generation 

K Second Generation 

T Third Generation 

U Fourth Generation 

Y Fifth Generation 

APPLICATION CODE 

1. LBP - LST 

2. LBP - HST 

3. LBP - LST - Oil Cooler 

4. LBP - HST - Oil Cooler 

5. HBP - LST or MBP - LST 

6. HBP - HST or MBP - HST 

7. AC 

9. MBP/HBP - HST 

NE K 2 134 GK 

REFRIGERATION CAPACITY 

The first digit indicates the number 

of zeros to be added to the 2 

following digits to get the rated 

capacity at 50 Hz. (In the indicated 

example the capacity is 58 Kcal/h). 


MP01E 2000-04 0 20-02 19 - 98 

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HANDBOOK 

Chapter 


REFRIGERANT TYPE CODE 

AND POSSIBLE DESIGN ALTERNATIVES 

A - B - C - D R12 single phase 

E - F - G R22 single phase 

K - J - L R502 single phase 

M - N R12 three phase 

P R22 three phase 

R Gas recycling 

S - T R502 three phase 

U R290 single phase 

V R290/R600a single phase 

Y R600a single phase 

Z - ZH - H R134a single phase 

ZX R134a three phase 

GE - GF - GG R407C single phase 

GJ - GK R404A single phase 

GS R404A three phase 

GP R407C three phase 

aCC001e

Figure 6b Series EM - Compressor Model Identification Code 

SERIES 

EM 

EFFICIENCY LEVEL 

S Standard 

T First Generation 

U Second Generation 

Y Third Generation 

Z Fourth Generation 

X Fifth Generation 

2C Sixth Generation 

EM S 36 H L P 

COOLING CAPACITY 

Rated cooling capacity divided by 

10 expresse in Btu/h (subcooled 

liquid conditions) and referred to 

the frequency listed on the 

compressor nameplate. 


MP01E 2000-04 0 20-02 20 - 98 

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Chapter 


ELECTRICAL COMPONENTS 

R Relay 

P PTC + Optional Run Capacitor 

C PTC + Mandatory Run Capacitor 

X Relay + Mandatory Start 

Capacitor 

APPLICATION 

L LBP 

H HBP 

REFRIGERANT 

Blank R 12 

H R 134a 

C R 600a 

U R 290 

aCC002e

Figure 7 Compressor Bill of Materials Code 

COMPLETE BOM CODE 

(Listed on shipping documents and invoices) 

BOM CODE ON NAMEPLATE 

TYPE, SERIES, CLASS CODES 

MODEL CODE 

VOLTAGE & FREQUENCY SUPPLY CODE (see Table 5) 

EXTERNAL VERSION CODE 

ELECTRICAL COMPONENTS CODE 

ACCESSORIES CODE 

PACKING CODE 

Figure 8 Manufacturing Date Code 

A = SEPTEMBER 

B = OCTOBER 

C = NOVEMBER 

D = DECEMBER 

E = JANUARY 

F = FEBRUARY 

HTNOM 

G = MARCH 

H = APRIL 

J = MAY 

K = JUNE 

L = JULY 

M= AUGUST 

A B 


MP01E 2000-04 0 20-02 21 - 98 

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Chapter 


aCC003e 

2 9 4 B A 5 0 8 1 A N 

RAEY 

FROM SEPTEMBER TO AUGUST OF FOLLOWING YEAR 

B = 1990 / 91 

P = 2002 / 2003 

C = 1991 / 92 

R = 2003 / 2004 

D = 1992 / 93 

S = 2004 / 2005 

E = 1993 / 94 

T = 2005 / 2006 

F = 1994 / 95 

U = 2006 / 2007 

G = 1995 / 96 

V = 2007 / 2008 

H = 1996 / 97 

W= 2008 / 2009 

J = 1997 / 98 

X = 2009 / 2010 

K = 1998 / 99 

Y = 2010 / 2011 

L = 1999 / 2000 Z = 

2011 / 2012 

M= 2000 / 2001 

N = 2001 / 2002 

A = 2012 / 2013 

aCC004e

2.9 WIRING DIAGRAMS 


MP01E 2000-04 0 20-02 22 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


The following pages represent the electrical connections wiring diagrams for all the configurations 

supplied with the compressors. On the wiring diagram, outlined with bold lines are the connections 

already existing on the electrical components (as supplied to the customer). Dotted lines 

represent the main connections which must be made by the customer. These include the thermostat, 

the supply line and the fan motor, if applicable. 

The connection screws on overload protectors, relays, terminal boxes and ground plates, are supplied 

with a clamping torque of (0.1 ÷ 0.3 Nm) (1 ÷ 3 kgcm). For the final tightening during the 

wiring done by the customer, we suggest to apply a torque of 0.8 ÷ 1.4 Nm (8 ÷ 14 kgcm) to the 

screws. The final clamping torque of electrical connections screw terminals should conform to 

the IEC 685-2-2 standard. 

Legend 2 Wiring Diagram 

S R 

1 

3 4 5 

2 1 

S R 

C 

S R 

M 

Overload Protector 

Overload Protector 

Current Start Relay 

Integrated PTC Device 

Current Start Relay with Capacitor 

Connections 

5 

2 

3CR Current Start Relay 3ARR3 Start Relay 

PTC Start Device 

Run Capacitor 

Run Capacitor 

(mandatory - not supplied) 

Optional Run Capacitor Start Capacitor 

Fan 

Lamp Pushbutton 

C 

3-Phase Motor Single Phase Motor 

Low-High Pressure Switch t Thermostat 

Earth Connection 

3-Phase Supply Pilot Circuit 24 or 220 V 

Single Phase Supply 

Common Common (Internal Overload Protector) 

Run Start 

Terminal Block 

S R 

C C' 

R S 

1NL 

Wh White Cable Br Brown Cable 

Bl Blue Cable Bk Black Cable 

YG Yellow-Green Cable Re Red Cable 

Connections supplied 

Connections to be made by the 

Customer (not supplied) 

1 

4 4 

S 

R 

2 

1

Table 8 Wiring Diagram 

The represented electrical wiring diagrams are listed on the following table: 


MP01E 2000-04 0 20-02 23 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


SERIES 

MOTOR 

TYPE 

ELECTRICAL COMPONENTS EXECUTION FIG. 

EM 

RSIR Faston terminal board (PTC starting device and overload protector) 

9 

RSIR Standard (integrated PTC starting device and overload protector) 

NB RSCR Standard (integrated PTC starting device, overload protector and 

run capacitor) 

10 

RSIR Standard (current relay and overload protector) 

T CSIR Standard (current relay and overload protector and start capacitor) 

11 

RSIR Cord anchorage (current relay and overload protector) 

NB-NE CSIR Cord anchorage (current relay and overload protector and start 

capacitor) 

11 

RSIR Terminal board (current relay and overload protector) 

T CSIR Terminal board (current relay and overload protector and start 

capacitor) 

12 

RSIR Terminal board (current relay and overload protector) 

NB-NE CSIR Terminal board (current relay and overload protector and start 

capacitor) 

13 

NB 

RSIR Ptc Terminal board (PTC and overload protector) 

RSCR Ptc Terminal board (PTC, overload protector and run capacitor) 

14 

PSC Standard (external overload protector and run capacitor) 

T-NJCSR 

Standard (3ARR3/RVA relay, external overload protector, run/ 

start capacitor) 

15 

CSR Box Box (3ARR3/RVA relay, internal overload protector, run/start 

T-NJ 

CSR Box 

capacitor) 

Box (3ARR3/RVA relay, external overload protector, run/start 

capacitor) 

16 

CSIR Standard (3CR/3ARR2 current relay, overload protector and start 

T-NJ 

CSIR 

capacitor) 

Standard (3CR/3ARR2 current relay, overload protector and start 

capacitor) 

17 

CSIR Box Box (3CR/3ARR2 current relay, overload protector and start 

capacitor) 

T-NJ 

CSIR Box Box (3CR/3ARR2 current relay, overload protector and start 

capacitor) 

18 

NJ 

CSIR Box Box (3ARR3/RVA relay, external relay and start relay) 

3 PHASE Standard (internal overload protector) 

19 

20

2.9.1 Compressor Wiring Diagram - EM Series - RSIR 


MP01E 2000-04 0 20-02 24 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


The electrical connections on the terminal board can be made with 4.76mm (3/16") male quickconnect 

terminations and with M 3.5 x 6 screws that are on three terminals L1-N-ground. Connection 

for the compressor ground is with a 4.76 mm quick-connect termination. 

Figure 9 RSIR Version terminal board with PTC starting device 

RSIR aSE010 

2.9.2 Compressor Wiring Diagram NB Series – RSIR-RSCR 

Standard version allows electrical connection with 4.76mm (3/16") male quick-connect terminations 

to the overload protector, PTC and grounding terminal; with M 3.5 screws on the terminal 

for the starting device and for the compressor ground. 

Figure 10 RSIR and RSCR Standard Version 

C 

3 

S R 

3 2 1 

21 

RSIR aSE020 

C 

S 

2 

RSCR (mandatory run capacitor) aSE030 RSCR (optional run capacitor) aSE040 

t 

L 

1 

3 

C 

S 

2 

2 

R 

N 

t 

L 

1 

3 

2 

R 

N 

L1 

L2 

N 

t 

t 

L 

1 

3 

C 

S 

2 

2 

R 

N


MP01E 2000-04 0 20-02 25 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


2.9.3 Compressor Wiring Diagram T-NB-NE-NT Series (electrical components without 

terminal board) – RSIR-CSIR 

The basic version allows electrical connection with 4mm eyelets to the overload protector, start 

relay and compressor ground. 

Figure 11 RSIR and CSIR standard version 

RSIR aSE050 CSIR aSE060 

C 

S R 

1 

21 

2.9.4 Compressor Wiring Diagram T Series (electrical component with terminal board) – 

RSIR-CSIR 

Allows electrical connection on the terminal board available in two versions: 

1. Terminal board with screw connections and a 4mm eyelet ground connection. 

2. 4.76mm (3/16") male quick-connect terminations and M 3.5 screws for each terminal, 4mm 

eyelet for ground. 

Figure 12 RSIR - CSIR terminal board version 

3 

M 


1 

C 

3 

S R 

21 

M 

1NL 

t 

1 

C 

S R 

C 

S R M 

3 

1 2 

2 

21 

3 

1NL 

M 

21 

t


MP01E 2000-04 0 20-02 26 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


2.9.5 Compressor Wiring Diagram NB-NE-NT Series (electrical component with terminal 

board) – RSIR-CSIR 

Allows for electrical connections on the terminal board with 4.76mm (3/16") or 6.35mm (1/4") 

quick-connect terminations and M 3.5 screws for terminal L - N - ground. 

Figure 13 RSIR and CSIR terminal board version 


C 

3 

S R 

1 

LN1 

21 

2.9.6 Compressor Wiring Diagram NB Series (electrical component with terminal board) 

– RSIR-RSCR 

Allows electrical connections to the terminal board with 4.76mm (3/16) quick-connect terminations 

and M3.5 screws for terminals L-N-ground. 

Figure 14 RSIR and RSCR terminal board version with PTC starting device 

t 

21 

RSIR PTC aSE200 RSCR PTC aSE201 

C 

3 

S R 

3 2 1 

LN1 

21 

t 

C 

3 

S R 

1 2 

C 

3 

S R 

3 2 

1 

LN1 

LN1 

21 

t 

t

2.9.7 Compressor Wiring Diagram T-NT-NJ Series – PSC-CSR 


MP01E 2000-04 0 20-02 27 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


Electrical connection can be made with 6.35mm (1/4") male quick-connect terminations to the 

hermetic terminal and capacitors. For the screws to the relay, overload protector and ground use 

4mm eyelets. 

Figure 15 PSC and CSR Versions 

PSC aSE120 CSR aSE130 

M 

3 

21 

2.9.8 Compressor Wiring Diagram NE-T-NT-NJ Series – CSR BOX 

Electrical connections can be made with 4mm eyelet terminals for the screws on the start relay 

and on the ground screw of the box and the compressor. 

Figure 16 CSR BOX with internal or external overload protector 

C 

S R 

S R 

4 4 

CSR BOX aSE140 

WH 

C 

S R 

4 4 

GNYE 

M 

21 

C' 

3 

RD 

BK 

5 

C 

M 

21 

C' 

3 

2 

1 

5 

2 

1

2.9.9 Compressor Wiring Diagram T-NT-NJ Series – CSIR 


MP01E 2000-04 0 20-02 28 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


Electrical connections can be made with 6.35mm (1/4") male quick-connect terminations to the 

relay, start capacitor and hermetic terminals 4mm eyelet connections for the protector and 

ground. 

Figure 17 Standard CSIR (with the relay T.I. 3CR or G.E. 3ARR2) 

CSIR aSE150 

2.9.10 Compressor Wiring Diagram T-NT-NJ Series – CSIR BOX 


relay, start capacitor and hermetic terminals 4mm eyelet connections for the protector and 

ground. 

Figure 18 CSIR BOX (with relay T.I. 3CR or G.E. 3ARR2) 

1 

S 

M 

2 

L 

21 

Bk 

CSIR BOX aSE160 

1 

S 

M 

2 

L 

BK 

WH 

3 

C 

M 

S R 

M 

GNYE 

21 

BK 

C 

3 

S RD R

2.9.11 Compressor Wiring Diagram NJ Series – CSIR BOX 


MP01E 2000-04 0 20-02 29 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


Electrical connections can be made with 4mm eyelet terminals for the screws on the start relay 

and on the ground screw of the box and the compressor. 

Figure 19 CSIR BOX (with relay G.E. 3ARR3 or AMF RVA) 

CSIR BOX aSE170 

2.9.12 THREE PHASE 


hermetic terminal and 4mm eyelet for ground connection. 

Figure 20 Three Phase 

WH 

S 

C 

R 

GNYE 

M 

21 

C' 

3 

RD 

BK 

5 

4 4 1 

C 

S R 

M 

2 

aSE180


COMPRESSORS 

HANDBOOK 

Chapter 

COMPRESSOR SUPPLY CONDITIONS 

3 COMPRESSOR SUPPLY CONDITIONS 

3.1 ELECTRICAL INSULATION 

All compressors are tested with high voltage to verify the electrical insulation to ground, the dielectric 

strength, and in accordance with the acceptable limits of the most severe requirements 

from the following standards: 

CENELEC HD 277.S1 + HD 251.S3 

IEC 335-2-34 + 335-1 

VDE 0700 Teil 1 + Teil 34 

BS 3456 - Par.3 - Sect.3-18 

EN 60335-2-34 - EN 60335-1 

UL 984 

3.2 “IP” DEGREE OF PROTECTION 

The degree of protection of the electrical components supplied with the compressor are listed in 

Table 9 in accordance with the following standards: 

IEC 529 

EN 60529 

Table 9 IP Degree 

SERIES T NB – NE – NT – EM 

NE (AC) – T (AC) 

NT (AC) – NJ 

“IP” DEGREE IP 31 IP 32 IP 33 

3.3 THE COMPRESSOR SHELL HYDROSTATIC STRENGTH 

The compressor shell resists pressures above those prescribed in the following standards: 

IEC 335-2-34 

EN 60335-2-34 

UL 984 

MP01E 2000-04 0 20-02 30 - 98

3.4 DEHYDRATION 

Table 10 Maximum level of residual humidity 

3.5 PAINTING 


COMPRESSORS 

HANDBOOK 

Chapter 


SERIES RESIDUAL MOISTURE MAXIMUM AMOUNT 

EM - NB - NE 60 mg H 2O 

T - NT 80 mg H 2 O 

NJ 90 mg H 2 O 

Black water based paint resists corrosion for 240 hours (test in humid atmosphere - ambient 43 

°C and relative humidity 100% - according to standard ASTM D 2247). 

The compressors are supplied with the tube ends and the electrical connections on the unpainted 

hermetic terminal. 

3.6 COMPRESSOR PRESSURISATION 

The compressor is pressurized to a pressure of about 0.2 bar with dry air (dew point lower than 

-40 °C); the tubes are sealed with rubber plugs to maintain this pressure. 

The compressors for use with hydrocarbons are supplied without pressurization. 

3.7 OIL CHARGE 

Table 11 shows the lubricant charged in the various series of compressors. The quantity is indicated 

in the General Catalog and Technical Bulletin. Only in an exceptional case, in accordance 

with the Sales Department, can the compressors be shipped without oil. 

In the interest of warranty, occasionally additives or substitution of the lubricant, can be made 

by the customer under the approval of Embraco Europe. 

A colored “O” stamped on the compressor cover indicates the presence and type of oil (for color 

and oil type see Table 11). 

The maximum humidity content in the oil is 40 ppm. 

MP01E 2000-04 0 20-02 31 - 98

Table 11 !"#$%&'()*+%,-*"-./*%(*)0.*&+12$.--+$- 

012 #.,.#)#(3)4,/./+("5(*)6%.!4,/ 


COMPRESSORS 

HANDBOOK 

Chapter 

!"#$%&''"%(')$$*+(!",-./.",' 

SERIES STAMP (1) 

Brand Type Viscosity 

%77(89:;

3.9 SPECIAL VERSIONS 


COMPRESSORS 

HANDBOOK 

Chapter 


All special version compressors that are indicated in the catalog or that are a customer's special 

request, may not be available; Table 16 shows all special versions intended for each compressor 

series. For the availability of the versions in the table or the feasibility of others not mentioned, 

please contact the Embraco Europe Sales Department. 

Table 13 Special Version Examples 

SERIES DESCRIPTION 

EM Compressors with a clip on the cover for the mounting of a condensate pan. 

NB – NE 

Compressors with Universal base plate (4 holes with a diameter of 19.05mm 

with dimensions of 101.6 x 165 mm) and internal standard tube ID. 

NJ 

Compressors without suction tubes but with a fixture for rotalock valve (not supplied). 

NJ 

Compressors without suction tubes but with a fixture for rotalock valve supplied 

with associated parts (unassembled). 

All Series Compressors without grommets and sleeves. 

MP01E 2000-04 0 20-02 33 - 98

4 COMPRESSOR PACKAGING 

4.1 MULTIPLE CARTON AND WOOD 


MP01E 2000-04 0 20-02 34 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 

COMPRESSOR PACKAGING 

DISPOSABLE PACKAGE 

This type of package consists of cartons containing one or more levels of compressors in the 

quantities indicated in Table 14, secured with straps on wooden pallet skids with dimensions of 

830 mm x 1130 mm and a variable height according to the compressor model. For overseas shipments 

or in the case of difficult transport, plywood protection is available for the standard packaging 

with the sides and cover secured with straps. 

Table 14 Characteristics of carton multiple packages 

Figure 21 Carton Package Unit 

Figure 22 

SERIES PACKAGE UNITPACKAGE 

UNIT Fig. 

EM 

NB – NE 

NB – NE electricals assembled 

T 

T electricals assembled 

NT 

NT electricals assembled 

NJ 

Wood Package Unit 

80, 100, 120 

40, 80 

37, 74 

40, 60 

30 

36 

24 

36 

Figure 22 

Figure 22 

Figure 22 

Figure 22 

Figure 22 

Figure 22 

Figure 21 

Figure 21 

aIMA01

4.1.1 Compressor Identification Marks 

Tags are applied on two sides of each package and report the following data: 

Figure 23 Package Label 

1 2 

3 4 5 

6 

7 


MP01E 2000-04 0 20-02 35 - 98 

8 

1. Compressor Bill of Material 

2. Compressor Bill of Material (Type 39 bar code) 

3. Compressor Model 

4. Voltage & Frequency 

5. Refrigerant 

6. Package Quantity 

7. Package Serial Number (Type 128 bar code) 

8. Package Serial Number 

COMPRESSORS 

HANDBOOK 

Chapter 

COMPRESSOR PACKAGING

4.2 RETURNABLE WOOD PACKAGE 

Legend 4 


MP01E 2000-04 0 20-02 36 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


This type of package consists of a shipping skid of 790 mm x 1200 mm on which are positioned 

the elements composing the packaging of various compressor layers, as listed below, secured 

with straps to the shipping skid (see figures 25-26-27). 

A 

SHIPPING 

SKID 

on which the base is positioned. 

B BASE on which the first layer of compressors is positioned. 

C 

SEPARATOR 

SKID 

are positioned between layers, in quantities according to the compressor 

series, as indicated in Table 15. 

D TOP SKID upper element closing of the package. 

This type of package, created to comply to recycling regulations, requires returning to Aspera of 

all components for their reuse. 

Furthermore they should arrive arranged in reverse sequence (top skid, separator skid, base, shipping 

skid) or in separated groups (all shipping skids, all bases, all separator skids and all top 

skids). 

Table 15 Characteristics of returnable multiple wood packages 

SERIES PACKAGING TYPE 

EM 

120 compressors per package (6 layers of 20 compressors) Figure 25 

100 compressors per package (5 layers of 20 compressors) Figure 26 

NB 80 compressors per package (4 layers of 20 compressors) Figure 27 

Figure 25 “EM” (120 compressors) 

D 

C 

B 

A 

aIM120

Figure 26 “EM” (100 compressors) 

Figure 27 “NB” (80 compressors) 

4.2.1 Compressor identification marks 


MP01E 2000-04 0 20-02 37 - 98 

COMPRESSORS 

HANDBOOK 

Chapter 


Two tags placed on the outer side of the package indicate the data of the contents (see 4.1.1). 

D 

C 

B 

A 

D 

C 

B 

A 

aIM100 

aIM080


COMPRESSORS 

HANDBOOK 

Chapter 


4.3 PACKAGE FOR ELECTRICAL COMPONENTS AND ACCESSORIES 

 

 

 

 

Legend 5 Components packing label 

 

 

 

 

 

 

 

 

Figure 28 Components packing label 

EUROPE S.r.l. 

STABILIMENTO 

COD. DISTINTA BASE 

MAG. 

BUONO DI PRELIEVO 

COMPONENTI ELETTRICI E ACCESSORI 

1 2 3 4 

COD. DISEGNO DESCRIZIONE 

ENTE EMITTENTE FIRMA RESPONSAB. DATA EMISSIONE ENTE RICEVENTE FIRMA RESPONSAB. VISTO 

DOCUMENTO 

NUMERO DATA 

 

5 

AIM008 

DESCRIZIONE MODELLO Q.T¸ RICH. CLIENTE CAUSALE DESTINAZIONE 

U.M. Q.T¸ RICH. Q.T¸ CONS. Q.T¸ MANC.

4.4 SINGLE PACKAGE 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 29 Single Compressor Package 

 

aIM007

COMPRESSORS 

HANDBOOK 

Chapter 

HANDLING, TRANSPORTING AND STORING COMPRESSORS 

5 HANDLING, TRANSPORTING AND 

STORING COMPRESSORS 

5.1 HANDLING 

 

 

 

 

 

 

 

 

ATTENTION: The multiple packages must not be handled with cranes by means of cables and hooks. 

Embraco Europe will not be responsible for damages to the product resulting from the use of improper handling. 

5.2 TRANSPORTING 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.2.1 Shipment by container 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Doc. Code Emission Revision Date Page

Table 16 Load Characteristics for 20' container 

5.2.2 Shipments by truck 

COMPRESSORS 

HANDBOOK 

Chapter 


SERIES 

FIRST LAYER 

PACK Nº - Nº COMP. 

SECOND LAYER 


THIRD LAYER 


TOTAL Nº OF 

COMPRESSORS 

EM 14 - 120 14 - 60 

(4) 

2.520 

NB 14 - 72 14 - 72 (4) 2.016 

NE (1) 

14 - 72 11 - 72 

)2( 

)4( 

1.800 

14 - 72 13 - 72 

)3( 

)4( 

1.944 

T (1) 14 - 36 14 - 36 7 - 36 (4) 1.260 

14 - 72 14 - 36 

(4) 

1.512 

NJ 14 - 36 11 - 36 

)2( 

)4( 

900 

(1) The different load structure (1.800 or 1.944 NE series compressors - 1.260 or 1.512 T compressors) is determined by the ratio 

between the maximum container weight and the compressor weight. 

(2) No. 3 package filler is added (containing all the equipped components). 

(3) A package as filler packaging, containing part of the equipped components is added. 

(4) Type of load which is rarely used. To be avoided due to an incomplete 3rd layer. 

Packages are added containing the equipped components. 

The transportation of compressors by truck is the most common system for highway or short distances 

where the stresses on the product are reduced. This type of transportation, if made without 

the necessary precautions on load steadiness and travel on uneven roads can cause stresses to 

compressors with possible damages to the suspension springs and to the internal discharge mufflers. 

For an Embraco 24,000 kgs (11,000 lb) truck, the load composition is as follows in 

Table 17: 

Table 17 Characteristics of load by truck 

SERIES 

PACKAGE UNIT TYPE & 

COMPRESSOR QUANTITY 

PACKAGE Nº 

TOTAL Nº OF 

COMPRESSORS 

EM Throwaway carton of 120 compressors 28 ÷ 32 3.000 ÷ 3.240 

EM Recycling wooden of 120 compressors 28 ÷ 32 3.000 ÷ 3.120 

NB-NE Throwaway carton of 72 compressors 28 ÷ 32 2.016 ÷ 2.304 

NB Recycling wooden of 80 compressors 28 ÷ 32 2.016 ÷ 2.304 

T Throwaway carton of 72 compressors 28 ÷ 32 1.512 ÷ 1.728 

NJ Throwaway carton of 36 compressors 28 ÷ 32 972 ÷ 1.080 


MP01E 2000-04 0 20-02 41 - 98

COMPRESSORS 

HANDBOOK 

Chapter 


5.3 ACCEPTABLE COMPRESSOR POSITIONS DURING 

TRANSPORTATION 

For the finished product (compressor assembled in the application), certain transportation conditions 

do not require that the compressor is positioned upright. Table 18 represents the various 

acceptable transportation positions. Any position not listed below is prohibited. 

Table 18 Acceptable compressor position during transportation 

SERIES 

EM 

T 

NT 

NB 

NE 

NJ 

Normal 

(upright) Label up 

POSITION 

Terminal board 

up Label down 

For the solution of potential positioning problems during assembling and transport, please consult 

the Technical Assistance - Sales Department. 

We advise against the transport by rail, even if correctly performed, because during the shunting, 

stress to the compressors from decelerations can cause stator shifts, or deformation or breaking 

of brackets and internal discharge tubes. 


Terminal board 

down 

MAXIMUM ALLOWABLE RATE OF DECELERATION DURING THE TRANSPORT: 1g 

MP01E 2000-04 0 20-02 42 - 98 

Upside-down

5.4 STORAGE 

COMPRESSORS 

HANDBOOK 

Chapter 


The storage of “multiple packages” can be done by placing one package upon another according 

to the limits indicated in Table 19 and 20. The maximum allowable height is illustrated on the 

two sides of the cartons making up the package unit. 

Table 19 Maximum height for multiple throwaway carton packages 

Throwaway packaging: 1 box + shipping skid Throwaway packaging: 2 boxes + shipping skid 

aIMA015 

aIMA023 

STINU 5 .XAM 

STINU 3 .XAM 


MP01E 2000-04 0 20-02 43 - 98

Table 20 Maximum height for multiple returnable packages 

COMPRESSORS 

HANDBOOK 

Chapter 


returnable packages 

NB Se 

ries 80 compr 

aIM0804 


EM Series - 120 compressors 

aIM1203 


EM Series -100 compressors 

aIM1004 

MAX. 4 UNITS MAX. 3 UNITS MAX. 4 UNITS 

All packages must be stored in places protected from humidity and bad weather, as illustrated 

(open umbrella) on the external sides of the cartons. 

Embraco Europe Srl does not take any responsibility for occasional damages to the package 

and to the finished product resulting from not observing these instructions. 


MP01E 2000-04 0 20-02 44 - 98

COMPRESSORS 

HANDBOOK 

Chapter 

INFORMATION ABOUT CORRECT COMPRESSOR INSTALLATION 

6 INFORMATION ABOUT CORRECT 

COMPRESSOR INSTALLATION 

6.1 COMPRESSOR SELECTION 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note For the operational limits of the compressor consult section 7.1. 

6.1.1 Minimum evaporating temperature 

 

 

 

6.1.2 Refrigeration capacity 

 

 

 

 

 

 

 

6.1.3 Refrigerant type 

 

 

 

6.1.4 Ambient temperature 

 

 

 

 

 

 

 

 

 

 


6.1.5 Operating Voltages and Frequencies 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

6.1.6 Electric motor starting torque 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.1.7 Compressor cooling type 

6.1.8 Noise level 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.1.9 Maximum current input 

 

 

 

 

 

6.2 COMPRESSOR UNPACKING 

 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 


6.3 PREPARATION OF REFRIGERATING SYSTEM COMPONENTS 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

We suggest that the components remain sealed as long as possible before their assembly, 

performing the welding no later than 15 minutes from assembling the components. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Embraco Europe Srl is not responsible for any damage to the compressor caused by the use 

of inappropriate components and production processes and products not compatible with 

the new refrigerants and lubrication oils. 

 

 

 

 

 


6.4 REFRIGERANT USE GUIDE 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

Because of the vast differences between systems and different working fields typical of each 

application, the reliability of the equipment should be defined by appropriate life and field 

tests. 

All operations related to the use of refrigerants should be performed in accordance with 

local laws and rules related to this subject. 


6.4.1 Guide for the use of R134a 

6.4.1.1 General information 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

Table 21 R134a Physical Characteristics 

Molecular Weight 

Critical Temperature 

Critical Pressure 

Boiling Point 

Table 22 R134a Ecological Characteristics 

ODP (Ozone Depletion Potential) 

GWP (Global Warming Potential) 

6.4.1.2 System components compatibility 

 

 

 

chlorine, mineral oils, paraffin and silicone 

 

 

 

 

 

 

 

 

 

 

 

 

DIN 8964 

6.4.1.3 Expansion device 

Capillary tubes: 

 

 

 

 

 

 

It is not recommended to use a capillary tube with an internal diameter less than 0.6 mm. 

 

 

 

 

 

Expansion Valve: 

 

6.4.1.4 Evaporator and condenser 

 

 

 

(1) The soluble residual contents and solid residues must be less than 100mg /m 2 of system internal surface area. Of this, 

a maximum of 40 mg/m 2 can be soluble and the maximum of 60mg /m 2 can be insoluble (for the definitions of solid/ 

soluble and additional details refer to the norm mentioned above). 


6.4.1.5 Filter dryer 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

6.4.1.6 Evacuation and charging equipment 

 

 

 

 

 

 

 

 

 

 

 

6.4.1.7 Refrigerant charge 

 

 

 

 

 

 

 

 

 

 

 

6.4.1.8 Moisture 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


6.4.1.9 Leak control 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

6.4.1.10 Equalization time for suction and discharge pressures 

 

 

 

 

 

 

6.4.1.11 High pressure limit control 

 

 

 

 


6.4.2 Guide for the use of R600a 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 23 R600a Physical characteristics 

Recommended Purity 

 

Maximum Allowable Impurities 

 

Molecular Weight 

Critical Temperature 

Critical Pressure 

Boiling Point 

Flammability in Air 

 

 

Table 24 R600a Ecological Characteristics 



PLEASE NOTE: R600a is flammable and should then be handled by qualified personnel in accordance 

with the rules and regulations now established for safe use. 

6.4.2.2 System component compatibility 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 






COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 


 

 

 

 

 


 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 


6.4.3 Guide for the use of R404A 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

Table 25 R 404A Physical Characteristics 

Near-azeotropic Mixture - Three HFC components 

R125 R143a 

R134a 

44% 

52% 

4% 

Boiling Point Temperature 

Glide ∆ 

< 

Table 26 R404A Ecological Characteristics 


GWP (Global Warming Potential) 

 

 

 


 

 

 

chlorine, mineral oils, paraffin and silicone 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIN 8964 


Capillary tubes: 

 

 

 

 

 

 

 

 

 

 

 

Expansion Valve: 

 







COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 



COMPRESSORS 

HANDBOOK 

Chapter 


 

 

DIN8964 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Do not make a mixture of R404A and air to control leaks in the system. 


 

 

 

 

 

 

 

(1) The soluble residual contents and solid residues must be less than 100mg/m 2 of system internal surface area. Of this, 




6.4.4 Guide for the use of R407C 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

Table 27 R407C Physical Characteristics 

Zeotropic Mixture - Three HFC components 

R134a 

R125 R32 

52% 

25% 

23% 

Boiling Point Temperature 

Glide ∆ 

 

7.1 

Table 28 R407C Ecological Characteristics 




 

 

 

 

chlorine, mineral oils, paraffin and silicone 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIN 8964 


 

 

 

 

 

 

 

 

 







COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIN 8964 

(1) The soluble residual contents and solid residues must be less than 100mg/m 2 of system internal surface area. Of this 





COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Do not use a mixture of R407C and air to control leaks in the system. 


 

 

 

 


6.4.5 Guide for the use of R290 


COMPRESSORS 

HANDBOOK 

Chapter 


The refrigerant R290 (propane) is used to substitute R22, as well as R404A, for low and medium 

back pressure applications, and air conditioning. 

Before supplying compressors for use with R290, it is first necessary to perform an evaluation 

of the risks involved with the use of this refrigerant. The customer should perform a risk assessment 

to ensure proper knowledge about the handling and use of the R290 in the refrigerant system 

(for further information please contact the Technical Assistant Department at Embraco 

Europe). 

Refrigerant R290 can normally be used in the same compressor designed for use with R22, but 

with a different (hermetic type) thermal overload protector. 

Tabella 29 R290 Physical Characteristics 

Molecular Weight 44.1 kg / kmole (Ref.: R 22 = 86.5) 

Critical Temperature 96.8 °C (Ref.: R 22 = 96.1 °C) 

Critical Pressure 42.5 bar (Ref.: R 22 = 49.8 bar) 

Boiling Point -42.1 °C (Ref.: R 22 = -40.8 °C) 

Flammability in Air 

Minimum limit. LEL = 2.1% in vol.; 

Maximum limit UEL = 9.5% in vol. 

Table 30 R290 Ecological Characteristics 

ODP (Ozone Depletion Potential) 0 (Ref.: R 22 = 0.05) 

GWP (Global Warming Potential) 3 (100 years) (Ref.: R 22 = 1700) 

PLEASE NOTE: R290 is flammable and should then be handled by qualified personnel in accordance 

with the rules and regulations now established for safe use. 

6.4.5.2 System component compatibility 

All of the components in the refrigeration system that may contain contaminants should conform 

to the requirements outlined in norm DIN 8964 (1) . 

The presence of the contaminants paraffin and silicon is not permitted. 


For a new application the first component to be dimensioned should be the capillary tube. To prepare 

the prototype, use chapter 6.6 - CAPILLARY TUBES as a reference. 

Generally, when changing a system from R22 to R290, the same capillary tube can be used although 

the length should be decreased by approximately 5%. 

It is not recommended to use a capillary tube with an internal diameter less than 0.6 mm. 

For each system the optimal dimensioning of the capillary tube should be performed in an appropriate 

test laboratory, in order to obtain the best working conditions. 


Generally to convert a system from R22 to R290, the same evaporator and condenser may be used. 

(1) The soluble residual contents and solid residues must be less than 100mg /m 2 of system internal surface area. Of this, a 

maximum of 40 mg/m 2 can be soluble and the maximum of 60mg /m 2 can be insoluble (for the definitions of solid/soluble 

and additional details refer to the norm mentioned above). 


MP01E 2000-04 0 20-02 60 - 98


COMPRESSORS 

HANDBOOK 

Chapter 


Refrigerant R290 requires the use of a normal filter drier type XH-9 (See Chapter 

Dryer) 

Always consult the manufacturer for the proper selection of the filter drier. 


Generally the vacuum level for an R290 system is the same used for a system with R22. 


MP01E 2000-04 0 20-02 61 - 98 

6.5 - Filter 

Good refrigeration practice suggests system evacuation from both low side and high side, achieving 

a minimum level of 0.14 mbar (100 µHg) with a non-condensable value of less than 0.3% by 

volume. 

Use charging equipment suitable for use of the refrigerant R290, and if possible, dedicate this 

equipment for use only with this refrigerant. 


Generally the quantity of the refrigerant R600a introduced into the system can be reduced from 

50% ÷ 60% compared to the required charge of R22. 

This characteristic greatly reduces the legal risk of flammability of the refrigerant in case of a 

system leak. 

For each system the optimal refrigerant charge should be determined in an appropriate test laboratory 

in order to obtain the best working conditions. 


In order to avoid problems that can shorten life of the refrigeration system, use components that 

are supplied internally dried and properly sealed to prevent the entrance of moisture. These components 

should remain sealed until they are used. 

The moisture content in a system should conform to norm DIN 8964 (1) . 

The level of moisture present in the refrigeration circuit should be below 40ppm and after the 

system has been operating, the filter dryer should remove moisture from the system from a level 

below 20ppm. 


It is recommended that special attention be given to the correct welding, or other forms of union 

of the system components, to avoid the possibility of leaks. 

To guarantee the maximum efficiency in controlling leaks, it is recommended to use a leak detector 

designed for use with refrigerant R290, or as an alternative, a detector designed for use 

with Helium. 


To protect the system, it may be necessary to install a high pressure limit switch to control the 

maximum discharge pressure. The settings on this limit switch should be in accordance with the 

limits established in Chapter 7.1.3 - Discharge gas maximum pressures. 

(1) The soluble residual contents and solid residues must be less than 100mg/m 2 of system internal surface area. Of this 


soluble and additional details refer to the norm mentioned above).

6.5 FILTER DRYER 

COMPRESSORS 

HANDBOOK 

Chapter 


The filter drier must be chosen with the molecular sieve suitable to the refrigerant type used in 

the system as indicated in the Table 31. 

Table 31 Suggested Filter Dryer 

REFRIGERANT MOLECULAR SIEVE 

a06R - 21R 8( 12) 5-H X-A4 

R 22 - R 502 (R 12 - R 600a) 4A-XH-6 (8 12) 

R 134a (R 12 - R 600a - R 407C) 

R404A - R402A- R402B - R401A - R401B - 

XH-7 (8 x 12) 

R 507 - R 290 

(R 12 - R 600a - R 134a - R 22 - R 502 - R 407C) 

XH-9 (8 12) 

For the applications with R134a - R404A, we suggest to increase the weight of the molecular 

sieve by 10% ÷ 15% compared to the corresponding applications with R12 - R502. The filter drier 

must be properly protected from absorption of ambient humidity during assembly of the system 

according to the following practices: 

Remove the protection caps from the filter shortly before welding. 

The filters supplied without protection caps, in “blister” or in “hermetic boxes” must be duly 

protected to avoid moisture absorption before welding. 

A reduced absorption capacity can cause an incomplete water absorption by the molecular 

sieve, therefore, the moisture could circulate freely in the system with the following effects 

indicated in Table 32. 

Table 32 Inconvenient caused by moisture in the system 

1Ice build-up: 

2 Acid build-up: 

3 Oil 

contamination: 

Reduces the cross-sectional area of the capillary tube, or expansion 

valve, up to their complete obstruction. 

Causes serious problems in the compressor and to the molecular sieve of 

the filter. Typical marks and consequences are: 

Copper plating of valve plate, valve reeds, crankshaft bearings, etc. 

Etching of electric motor insulation by acids, with burning of motor 

windings. 

Destruction of the filter with disintegration of molecular sieve and 

build-up of “dusts”. 

Wears and blocks alternative and rotating mechanical parts. 

Causes acidification and reduction of its lubricating power, with change 

of oil color (brown). It can cause build-up of sludge, with subsequent 

poor lubrication of compressor. 


MP01E 2000-04 0 20-02 62 - 98

6.6 CAPILLARY TUBES 

COMPRESSORS 

HANDBOOK 

Chapter 


During the initial steps of the design of a new cabinet Table 33 can provide a helpful guidance 

for selecting the most appropriate capillary tube dimensions to start with. The exact size of the 

capillary must however be found according to the results of the laboratory tests performed on the 

prototype cabinets. 

The values, indicated on Table 33, have been determined according to the following considerations: 

LBP-MBP-HBP Applications: with heat exchanger of minimum length 0.9 m and with 0 

°C sub-cooling. 

Air Conditioning Applications: with condensing temperature of 54 °C, sub-cooling of 8 °C, 

return gas temperature 18 °C. 

Table 33 Choice of Capillary 

R 600a - LBP Applications 

DIMENSION 

COMPRESSOR FREQUENCY (from –30°C to –15°C (from –15°C to –5°C 

evap. temp.) evap. temp.) 

EMU26CLC 50 Hz 0.66 mm I.D. 4.00 m 0.66 mm I.D. 3.45 m 

EMT26CLP 50 Hz 0.66 mm I.D. 3.80 m 0.66 mm I.D. 3.30 m 

EMU32CLC 50 Hz 0.66 mm I.D. 3.60 m 0.78 mm I.D. 3.60 m 

EMT32CLP 50 Hz 0.78 mm I.D. 3.60 m 0.91 mm I.D. 3.60 m 

EMT40CLP-EMU40CLC 

NBM1112Y - NBT1112Y 

50 Hz 0.78 mm I.D. 3.50 m 0.91 mm I.D. 3.50 m 

NBU1112Y 

EMT45CLP - EMU46CLC 

50 Hz 0.78 mm I.D. 3.40 m 0.91 mm I.D. 3.40 m 

NBM1114Y – NBU1114Y 

NBT1114Y – EMT56CLP 

NBK1116Y – NBU1116Y 

NBT1116Y 

NBK1118Y – NBU1118Y 

NBT1118Y 

50 Hz 0.78 mm I.D. 3.20m 0.91 mm I.D. 3.20 m 

50 Hz 0.78 mm I.D. 3.00 m 0.91 mm I.D. 3.00 m 

50 Hz 0.91 mm I.D. 3.60 m 1.06 mm I.D. 3.60 m 


MP01E 2000-04 0 20-02 63 - 98

COMPRESSORS 

HANDBOOK 

Chapter 


R22 - LBP Applications 

COMPRESSOR FREQUENCY 

DIMENSION 

(from –30°C to –5°C 

evap. temp.) 

– 

NE2125E 

50 Hz 

60 Hz 

0.91 mm I.D. 3.2 m 

0.91 mm I.D. 2.85 m 

– 

– 

NE2134E 

50 Hz 

60 Hz 

0.91 mm I.D. 2.8 m 

0.91 mm I.D. 2.5 m 

– 

– 

T2140E 

50 Hz 

60 Hz 

0.91 mm I.D. 2.6 m 

0.91 mm I.D. 2.3 m 

– 

– 

T2155E 

50 Hz 

60 Hz 

1.20 mm I.D. 3.9 m 

1.20 mm I.D. 3.5 m 

– 

– 

T2168E 

50 Hz 

60 Hz 

1.20 mm I.D. 3.3 m 

1.20 mm I.D. 2.8 m 

– 

– 

NJ2178E 50 Hz 1.20 mm I.D. 3.0 m – 

NJ2190E 50 Hz 1.20 mm I.D. 2.5 m – 


R22 - MBP/HBP Applications 


evap. temp.) 

DIMENSION 


MP01E 2000-04 0 20-02 64 - 98 

(from –5°C to +10°C 

evap. temp.) 

NB6144E 

50 Hz 

60 Hz 

1.06 mm I.D. 3.5 m 1.06 mm I.D. 3.0 m 

1.06 mm I.D. 3.0 m 1.06 mm I.D. 2.6 m 

NB6152E 

50 Hz 

60 Hz 

1.06 mm I.D. 3.3 m 1.06 mm I.D. 2.7 m 

1.06 mm I.D. 2.8 m 1.06 mm I.D. 2.3 m 

NB5165E - NB6152E 

50 Hz 

60 Hz 

1.06 mm I.D. 3.0 m 1.20 mm I.D. 3.5 m 

1.06 mm I.D. 2.6 m 1.20 mm I.D. 3.0 m 

NE5181E - NE6181E 

50 Hz 

60 Hz 

1.20 mm I.D. 3.2 m 1.20 mm I.D. 2.5 m 

1.20 mm I.D. 2.75 m 1.20 mm I.D. 2.2 m 

NE5195E - NE6195E 60 Hz 1.20 mm I.D. 3.0 m 1.27 mm I.D. 2.8 m 

NE5195E - NE6210E 

50 Hz 

60 Hz 

1.20 mm I.D. 2.9 m 1.27 mm I.D. 2.6 m 

1.20 mm I.D. 2.5 m 1.27 mm I.D. 2.3 m 

NE9213E - NE7213F 

50 Hz 

60 Hz 

1.27 mm I.D. 2.7 m 1.27 mm I.D. 1.9 m 

1.27 mm I.D. 2.35 m 1.27 mm I.D. 1.65 m 

T6217E 50 Hz 1.27 mm I.D. 2.3 m 1.27 mm I.D. 1.6 m 

T6220E 50 Hz 1.37 mm I.D. 2.0 m 1.37 mm I.D. 1.6 m 

NJ9226E - NJ9226P - NJ7225F 

50 Hz 

60 Hz 

1.63 mm I.D. 2.9 m 1.63 mm I.D. 1.7 m 

1.63 mm I.D. 2.5 m 1.90 mm I.D. 1.9 m 

NJ7228F - NJ7228P - NJ7228E 

50 Hz 

60 Hz 

1.63 mm I.D. 2.4 m 1.90 mm I.D. 1.9 m 

1.90 mm I.D. 2.5 m 2.16 mm I.D. 2.0 m 

NJ9232E - NJ9232P - NJ7231F 

NJ7231P 

NJ9238E - NJ9238P 

NJ7238E - NJ7238P 

NJ7240F - NJ7240P 

50 Hz 1.90 mm I.D. 2.8 m 2.16 mm I.D. 2.2 m 

60 Hz 1.90 mm I.D. 2.15 m 2.16 mm I.D. 1.7 m 

50 Hz 2.16 mm I.D. 2.6 m 2 1.63 mm I.D. 1.8 m 

60 Hz 2.16 mm I.D. 2.0 m 2 2.16 mm I.D. 2.5 m 

50 Hz 2.16 mm I.D. 2.3 m 2 2.16 mm I.D. 2.8 m 

60 Hz 2 1.63 mm I.D. 2.0 m 2 2.16 mm I.D. 2.3 m

COMPRESSORS 

HANDBOOK 

Chapter 


R 22 - Air Conditioning Applications 

COMPRESSOR FREQUENCY DIMENSION 

NE7213E 

NE7215E 

T7220E - T7220F 

T7223E - T7223F 

NJ7225E - NJ7225F 

NJ7228E - NJ7228F 

NJ7231E - NJ7231F -NJ7231P 

NJ7238E - NJ7238P 

NJ7240E - NJ7240F - NJ7240P 

50 Hz 1.24 mm I.D. 1.05 m – 

60 Hz 1.24 mm I.D. 1.0 m – 

50 Hz 1.24 mm I.D. 1.0 m – 

60 Hz 1.24 mm I.D. 0.95 m – 

50 Hz 1.37 mm I.D. 1.0 m – 

60 Hz 1.37 mm I.D. 0.95 m – 

50 Hz 1.5 mm I.D. 1.05 m – 

60 Hz 1.5 mm I.D. 1.0 m – 

50 Hz 2.16 mm I.D. 2.0 m – 

60 Hz 2.16 mm I.D. 1.8 m – 

50 Hz 2.16 mm I.D. 1.9 m – 

60 Hz 2.16 mm I.D. 1.7 m – 

50 Hz 2.16 mm I.D. 1.6 m – 

60 Hz 2.16 mm I.D. 1.4 m – 

50 Hz 2 2.16 mm I.D. 2.5 m – 

60 Hz 2 2.16 mm I.D. 2.3 m – 

50 Hz 2 2.16 mm I.D. 2.3 m – 

60 Hz 2 2.16 mm I.D. 2.1 m – 


MP01E 2000-04 0 20-02 65 - 98


COMPRESSORS 

HANDBOOK 

Chapter 


R134a - LBP Applications 

(from –30°C to –15°C 

evap. temp.) 

DIMENSION 


MP01E 2000-04 0 20-02 66 - 98 


evap. temp.) 

EMT22H 50 Hz 0.61 mm I.D. 4.0 m 0.61 mm I.D. 3.5 m 




NB2116Z - 

NB1116Z - EMT60H 

NB 1118Z - 

NB2118Z 

50 Hz 0.78 mm I.D. 3.3 m 0.91 mm I.D. 3.3 m 

60 Hz 0.78 mm I.D. 2.75 m 0.91 mm I.D. 2.75 m 

50 Hz 0.91 mm I.D. 4.0 m 1.06 mm I.D. 4.0 m 

60 Hz 0.91 mm I.D. 3.3 m 1.06 mm I.D. 3.3 m


NB5125Z 

NB5128Z 

 

NB5132Z - NB6132Z 

NB5144Z - NB6144Z 

NEK5144Z - EMT6144Z 

NE5160Z - NE6160Z 

NEK6160Z - EMT6160Z 

NE5170Z - NE6170Z 

NEK5170Z - NEK6170Z 

EMT6170Z 

NE5187Z - NE6187Z 

NEK6187Z 

COMPRESSORS 

HANDBOOK 

Chapter 


R134a - HBP Applications 


evap. temp.) 

DIMENSION 


MP01E 2000-04 0 20-02 67 - 98 


evap. temp.) 

50 Hz 0.78 mm I.D. 2.5 m 0.91 mm I.D. 2.4 m 

60 Hz 0.78 mm I.D. 2.1 m 0.91 mm I.D. 2.0 m 

50 Hz 0.78 mm I.D. 2.4 m 0.91 mm I.D. 2.3 m 

60 Hz 0.78 mm I.D. 2.0 m 0.91 mm I.D. 1.9 m 

50 Hz 0.78 mm I.D. 2.3 m 0.91 mm I.D. 2.2 m 

60 Hz 0.78 mm I.D. 1.9 m 0.91 mm I.D. 1.8 m 

50 Hz 0.91 mm I.D. 2.9 m 1.06 mm I.D. 2.7 m 

60 Hz 0.91 mm I.D. 2.4 m 1.06 mm I.D. 2.3 m 

50 Hz 0.91 mm I.D. 2.4 m 1.06 mm I.D. 2.5 m 

60 Hz 0.91 mm I.D. 2.1 m 1.06 mm I.D. 2.2 m 

50 Hz 1.06 mm I.D. 3.2 m 1.27 mm I.D. 3.3 m 

60 Hz 1.06 mm I.D. 2.65 m 1.27 mm I.D. 2.75 m 

50 Hz 1.24 mm I.D. 4.0 m 1.37 mm I.D. 3.3 m 

60 Hz 1.24 mm I.D. 3.4 m 1.37 mm I.D. 2.9 m 

NE6210Z - NEK6210Z 60 Hz 1.37 mm I.D. 3.5 m 1.50 mm I.D. 3.3 m 

NEK6212Z 60 Hz 1.37 mm I.D. 3.3 m 1.50 mm I.D. 3.1 m 

T6213Z 

50 Hz 

60 Hz 

1.37 mm I.D. 3.5 m 1.50 mm I.D. 3.3 m 

1.37 mm I.D. 3.1 m 1.50 mm I.D. 2.9 m 

T6215Z - T6217Z 

50 Hz 

60 Hz 

1.37 mm I.D. 3.1 m 1.50 mm I.D. 2.9 m 

1.37 mm I.D. 2.7 m 1.50 mm I.D. 2.5 m 

NJ6220Z - NJ6220ZX 

50 Hz 

60 Hz 

1.63 mm I.D. 3.6 m 1.78 mm I.D. 3.3 m 

1.63 mm I.D. 3.0 m 1.78 mm I.D. 2.75 m 

NJ6226Z - NJ6226ZX 

50 Hz 

60 Hz 

2 1.50 mm I.D. 4.0 m 2 1.63 mm I.D. 3.0 m 

2 1.50 mm I.D. 3.4 m 2 1.63 mm I.D. 2.5 m

COMPRESSORS 

HANDBOOK 

Chapter 

!"#$%&'(!$" ')$*(+,$%%-,(+,$&.%-//$%+!"/('00'(!$" 

R 290 - R 404A - R 507 - LBP Applications 


-%.&$&$/+'+-%.&$&0/ 

-%&$&02.+'+-%.&$&02. 

%!1&$&$/+'+%!1&$&0/ 

%!1&$&02.+'+%!1&$&02. 

-%.&$:#2.+'+-%.&$:(2. 

-%&$:(2.+'+-%.&$:(/ 

1&$(#2.+'+-%.&$0#/ 

1&$002. 

1&$)*2.+'+-1&$)*2. 

1&$;*2. 

-1&$;*2.+'+-1&$)#/ 

DIMENSION 

(from –40°C to –10°C 

evap. temp.) 

0# 34 #5,$+66+7585++(5# +6 9 

)# 34 #5,$+66+7585++:50 +6 9 

0# 34 #5,$+66+7585++:5# +6 9 

)# 34 #5,$+66+7585++&5)0+6 9 

0# 34 #5,$+66+7585++&5; +6 9 

)# 34 #5,$+66+7585++&5( +6 9 

0# 34 $5&#+66+7585++(5$ +6 9 

)# 34 $5&#+66+7585++:5) +6 9 

0# 34 $5&#+66+7585++:5( +6 9 

)# 34 $5&#+66+7585++:5# +6 9 

0# 34 $5&#+66+7585++:5$ +6 9 

)# 34 $5&#+66+7585++&5;0+6 9 

1&$*#2. 0# 34 $5&#+66+7585++&5, +6 9 

-1&$*#2.+'+-1&$;#/ )# 34 $5&#+66+7585++&500+6 9 

-

COMPRESSORS 

HANDBOOK 

Chapter 


R 290 - R 404A - R 507 - MBP Applications 


NB6144GK - NEK6144GK 

EMT6144U - EMT6144GK 

NB6152GK - NEK6152U 


NB5165GK 

NB6165GK - NEK6165GK 


NE5181GK - NEK6181U 

NE6181GK - NEK 6181GK 

NE5195GK 

NE6195GK 

NEK 6210U 

NE6210GK - NEK6210GK 

NEK6213U - NEK6213GK 

NE9213GK 

T6217GK 

NT6217U - NT6217GK 


evap. temp.) 

DIMENSION 


MP01E 2000-04 0 20-02 69 - 98 


evap. temp.) 

50 Hz 1.06 mm I.D. 3.30 m 1.06 mm I.D. 2.80 m 

60 Hz 1.06 mm I.D. 2.80 m 1.06 mm I.D. 2.45 m 

50 Hz 1.06 mm I.D. 3.10 m 1.06 mm I.D. 2.55 m 

60 Hz 1.06 mm I.D. 2.65 m 1.06 mm I.D. 2.15 m 

50 Hz 1.06 mm I.D. 2.80 m 1.20 mm I.D. 3.30 m 

60 Hz 1.06 mm I.D. 2.45 m 1.20 mm I.D. 2.85 m 

50 Hz 1.20 mm I.D. 3.00 m 1.20 mm I.D. 2.35 m 

60 Hz 1.20 mm I.D. 2.60 m 1.20 mm I.D. 2.05 m 

60 Hz 1.20 mm I.D. 2.80 m 1.27 mm I.D. 2.65 m 

50 Hz 1.20 mm I.D. 2.75 m 1.27 mm I.D. 2.45 m 

60 Hz 1.20 mm I.D. 2.35 m 1.27 mm I.D. 2.15 m 

50 Hz 1.27 mm I.D. 2.55 m 1.27 mm I.D. 1.80 m 

60 Hz 1.27 mm I.D. 2.20 m 1.27 mm I.D. 1.55 m 

50 Hz 1.27 mm I.D. 2.15 m 1.27 mm I.D. 1.50 m 

60 Hz 1.27 mm I.D. 1.85 m 1.37 mm I.D. 1.60 m 

T6220GK 50 Hz 1.37 mm I.D. 1.90 m 1.37 mm I.D. 1.50 m 

NT6220U - NT6220GK 60 Hz 1.37 mm I.D. 1.65 m 1.63 mm I.D. 1.75 m 

T6222GK 

50 Hz 1.37 mm I.D. 1.60 m 1.63 mm I.D. 1.70 m 


NJ9226GK 

50 Hz 1.63 mm I.D. 2.75 m 1.63 mm I.D. 1.60 m 


50 Hz 1.90 mm I.D. 2.65 m 2.16 mm I.D. 2.05 m 

NJ9232GK 

60 Hz 1.90 mm I.D. 2.00 m 2.16 mm I.D. 1.60 m 

50 Hz 2.16 mm I.D. 2.45 m 21.63 mm I.D. 1.70 m 

NJ9238GK 

60 Hz 2.16 mm I.D. 1.90 m 22.16 mm I.D. 2.35 m

6.7 APPLICATION OF RUBBER GROMMETS 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLEASE NOTE: The use of grommets and sleeves different from the ones designated may decrease 

the absorption of vibration resulting in a subsequent noise increase. 

Legend 6 Rubber Grommets Assembling Process 

A F 

B G 

C H 

D I 

E 

Figure 30 Rubber Grommets Assembling Process 

Correct Mounting of Rubber Grommets 

by means of Nut and Bolt by means of Stud and Clamp 

A 

C 

D 

H 

B 

Incorrect Mounting of Rubber Grommets 

A 

C 

D 

H 


 

E 

F 

E 

F 

G 

A 

D 

I 

E 

F

Table 34 Rubber Grommets 

COMPRESSORS 

HANDBOOK 

Chapter 


COD. A B C D E F G H L M N P Q R S T 

AM01 17.2 9 6.6 16.7 5 3 10.5 3 20.8 16 10.5 8.5 19 25 

AM02 16.6 11.1 8.7 16.7 10.5 3 23.8 17.5 11.1 28.6 

AM03 18.3 11.1 8.7 17.5 4.7 9.5 4 23.8 19 11.1 17.5 31.8 

AM04 17.2 9 6.6 16.7 11 3 10.5 3 23.8 16 11 8.5 22 28.6 

AM05 23 11.1 8.7 23 9.4 3.2 3.2 15 4 23.8 19 14.3 11.1 19 25.3 31.7 

Figure 31 Rubber Grommets 

SERIES GROMMETS AND SLEEVES 

EM 

(will substitute 

version AM04) 

NE 

(not standard) 

10MA 10.12.2 

2.222.018 

D 

20MA 10.12.2 

2.222.014 

D 


E 

F 

MP01E 2000-04 0 20-02 71 - 98 

ø M 

ø N 

ø P 

ø Q 

ø S 

ø T 

ø M 

ø N 

ø P 

ø T 

L 

L 

H 

H 

A 

A 

ø C 

ø B 

ø C 

ø B

SERIES GROMMETS AND SLEEVES 

NB 

NE 

Only for models 

with Universal 

baseplate 

NB 

NE 

All models 

with European 

baseplate 

(will be 

substituted by 

version AM01) 

T - NT 

NJ 

COMPRESSORS 

HANDBOOK 

Chapter 


30MA 30.12.2 

2.222.015 

D 

40MA 90.12.2 

2.222.018 

D 

50MA 40.12.2 

2.222.016 

D 

E 

E F 


G 

G 

G 

MP01E 2000-04 0 20-02 72 - 98 

ø M 

ø N 

ø P 

ø R 

ø T 

ø M 

ø N 

ø P 

ø Q 

ø R 

ø T 

ø M 

ø N 

ø P 

ø Q 

ø R 

ø S 

ø T 

L 

L 

L 

H 

H 

H 

A 

A 

A 

ø C 

ø B 

ø C 

ø B 

ø C 

ø B

6.8 WELDING OF CONNECTION TUBES 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

DO NOT ALLOW 

 

 

 

DO NOT ALLOW 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.9 ROTALOCK VALVES 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 


 

Table 35 Suggested tightening torques 

ELEMENT DIMENSION 

TIGHTENING TORQUE 

Nm Kgm 

 

 

 

 

 

 

(1) The opening and closing of the valve stem can be effected with electric or pneumatic drivers having a speed lower than 360 rpm. 

Higher speed damages the stem and valve body tightness seats. 

 

 

 

 

 

It is a good rule to try to keep the welding time to a minimum in order to not overheat the stem tightness, 

even if produced with material resistant to high temperatures. 

Legend 7 RotalockValve 

1 

A & B 

2 

3 

4 

Figure 32 Rotalock Valve 

aID001f aID001s 

3 

2 

4 

1 

B 


A 

 

3 

2 

4 

1 

B 

A

Figure 33 Valve Position 

6.10 COMPRESSOR COOLING 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

aID002f 

aID003f 

aID004f 

3 

 

 

 

static cooling 

 

 

 

fan cooling 

 

 

 

 

 

 

 

 

 

Table 36 Fan Coolers Characteristics 

4 

COMPRESSOR SERIES NB NE-T- J 

 


 

3 

4 

1 

4 

1

6.11 VACUUM OPERATIONS 

COMPRESSORS 

HANDBOOK 

Chapter 


It is fundamental to perform a proper evacuation of the refrigeration system to ensure proper running 

of the refrigerating machine, and to preserve the life of the compressor. A proper evacuation 

process assures that the air and moisture contents are below the allowed limits. 

The introduction of new refrigerants require the use of new polyester oils with characteristics of 

high hygroscopicity which require the greatest care in system evacuation. There are various 

methods to evacuate a refrigeration system: one-side (low pressure side), two-side (low and high 

pressure sides), at different times, with phases of refrigerant pre-charge, etc. We must aim to 

reach a vacuum value (measured at its stabilization on both the low and high pressure sides), better 

than 0.14 mbar (100 µHg), and the maximum level of non-condensable must not exceed 

0.3%. 

PLEASE NOTE: To avoid irreparable damages to the compressor, never start it under vacuum (without 

refrigerant charge). 

6.12 REFRIGERANT CHARGE 

After the vacuum operation, the system must be charged with the refrigerant type indicated on 

the compressor nameplate or one of the alternate allowed types, in the pre-determined quantity. 

For a correct charge we suggest, after carrying out the vacuum, to pump part of the refrigerant 

into the compressor to “break” the vacuum; then start the compressor to draw the remaining part 

of the charge. 

In the small refrigerating systems utilizing few grams of charge, the refrigerant is usually 

pumped into the compressor through the service tube. In this case you must wait 5 to 10 minutes 

(time depending on the refrigerant quantity and on the ambient temperature), before starting the 

compressor. This to allow partial refrigerant evaporation and to avoid the suction of liquid refrigerant 

into the compressor cylinder. 

PLEASE NOTE: The refrigerant mixtures must be charged in the system exclusively at liquid state. 

Table 37 Maximum Refrigerant Charge 

SERIES EM - NE T NJ - NT 

REFRGERANT 

CHARGE (g) 

350 500 800 

In case the refrigerant charge should exceed the max values allowed for the compressor, take care 

that the circuit is equipped with liquid receiver, and, for larger systems, an oil heater in the compressor 

housing to avoid mixing of refrigerant in the oil, foaming with subsequent liquid suction 

and pumping. If it becomes necessary for a technician to recharge the system in the field, he 

should first remove all of the remaining original charge, and then recharge the system in accordance 

with the refrigerant quantity indicated on the data plate. 

PLEASE NOTE: The use of the compressor outside the intended working range cannot make use of the 

warranty. 


MP01E 2000-04 0 20-02 76 - 98

6.13 REFRIGERANT LEAKS CONTROL 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For the leak test of R134a, use equipment designed exclusively for that refrigerant. 

PLEASE NOTE: R404A-R402A-R402B refrigerants must not be mixed to the air during leak detection, 

neither be used nor let in presence of high air concentrations above atmospheric pressure at high temperatures. 

6.14 ELECTRIC SUPPLY 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLEASE NOTE: The electrical wiring must be performed according to the laws and regulations in the 

country in which the refrigeration system will operate. 


COMPRESSORS 

HANDBOOK 

Chapter 

RUNNING DATA AND COMPRESSOR CHECKING PROCEDURES 

7 RUNNING DATA AND COMPRESSOR 

CHECKING PROCEDURES 

7.1 COMPRESSOR RUNNING LIMITS 

 

 

 

 

 

 

 

 

 

 

7.1.1 Maximum temperature of electric motor stator windings 

Legend 8 

ma 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( Rc Rf) 

Tc = 

------------------------ ( 234,5 + Tf) 

+ Tf 

Rf 

Tc 

Tf 

 

Rc 

Tc 

Rf 

Tf 


7.1.2 Discharge gas maximum temperature 

COMPRESSORS 

HANDBOOK 

Chapter 


Maximum temperature indicated in Table 38, measured on discharge tube at a distance of 

50mm from compressor housing, under continuous running conditions. 

7.1.3 Discharge gas maximum pressures 

Pressure max peak, under “Pull-down”, as indicated in Table 38. 

Maximum pressures, under continuous running, as indicated in Table 38. 

Table 38 Discharge gas maximum pressures 

Refrigerant 

Make sure that at the maximum ambient temperature anticipated the compressor operates 

within the operating field indicated in the following section. 

7.1.4 Suction gas overheating 

PULL–DOWN 

MAXIMUM PEAK 

Maintain the suction gas temperature overheating as low as possible (min 5 °C), taking care 

that there is no return of liquid. 

Length of heat exchanger from 0.9 m to 1.3 m. 

MAXIMUM VALUE 

CONDITION 


MP01E 2000-04 0 20-02 79 - 98 

MAX. TEMP. 

DISCHARGE 

GAS 

kg/cm 2 (rel.) kg/cm 2 bar (rel.) 

(rel.) bar (rel.) °C 

R22 23.2 22.8 20.7 20.3 125 

R290 (Propane) 21.1 19.8 18.1 17.7 110 

R134a 15.8 15.5 13.9 13.6 140 

R600a (Isobutane) 7.7 7.5 6.7 6.6 110 

R407C 24.2 23.8 21.4 21.0 140 

R404A 27.7 27.2 24.7 24.2 140 

R507 28.5 27.9 25.4 24.9 140

7.1.5 Compressor operating fields 

COMPRESSORS 

HANDBOOK 

Chapter 


Within the minimum and maximum values typical for each model. 

In the diagrams represented on the following pages, indicated are the limits of evaporating, condensing, 

ambient and return gas temperatures. 

The compressor can operate within the limits of evaporating and condensing temperatures defined 

by the outlined area bordered by a continuous line, at the indicated conditions of ambient 

and return gas temperature. 

Outside these operating fields, the system operates at high pressures and high temperatures, and 

cause early defects in the compressor. 

The compressor defects caused by applications operating outside the prescribed fields will not 

be considered under warranty. 

7.1.5.1 R22 Compressors operating field 

The production of R22 compressors was required for the replacement of R12 - R502 refrigerants 

and the choice has been obliged by the non availability at that moment of other suitable alternative 

gases. 

For low and medium temperature R22 cabinets, compressors must be selected according to the 

limits associated with this type of gas, that was developed for high evaporating temperatures, 

thus characterized by restrictive limits. 

7.1.5.2 R404A - R507 - R600a - R134a - R22 – R290 compressors operating field 

The working fields represented in this section are related to all model and series of compressors 

that take the indicated refrigerant. 

1 – LBP: R134a – R600a 

2 – LBP: R404A – R507 – R290 

3 – MBP: R404A – R507 – R290 

4 – HBP: R134a – R600a – R 22 

5 – LBP: R 22 

6 – AC 


MP01E 2000-04 0 20-02 80 - 98

Legend 9 

COMPRESSORS 

HANDBOOK 

Chapter 


Tc Condensing Temperature k Ambient 32 °C and return gas 20 °C 

Te Evaporating Temperature m Ambient 32 °C and return gas 20 °C 

(for a transitory period) 

1 - REFRIGERANT R134a - R600a - APPLICATION LBP 2 - REFRIGERANT R404A - R507 - R290 - APPLICATION LBP 

Tc 

C 

60 

55 

50 

45 

40 

35 

-35 -30 -25 -20 -15 -10 -5 

Te 

3 - REFRIGERANT R404A - R507 - R290 - APPLICATION MBP 4 - REFRIGERANT R134a - R600a - R22 - APPLICATION HBP 

Tc 

3 - REFRIGERANT R22 - APPLICATION LBP 4 - APPLICATION AC 

Tc 

C 

60 

55 

50 

45 

40 

35 

C 

60 

55 

50 

45 

40 

35 

k 

-25 -20 -15 -10 -5 0 5 10 

Te 

-40 -35 -30 -25 -20 -15 -10 -5 

Te 


m 

k 

m 

k 

MP01E 2000-04 0 20-02 81 - 98 

m 

m 

C 

C 

C 

Tc 

Tc 

Tc 

C 

60 

55 

50 

45 

40 

35 

C 

60 

55 

50 

45 

40 

35 

C 

60 

55 

50 

45 

40 

35 

-45 -40 -35 -30 -25 -20 -15 -10 

Te 

-20 -15 -10 -5 0 5 10 15 

Te 

m 

k 

-10 -5 0 5 10 15 20 25 

Te 

m 

k 

m 

k 

C 

C 

C

7.1.6 Start conditions 

COMPRESSORS 

HANDBOOK 

Chapter 


On Table 39, indicated are the pressure limits to start the compressor at nominal or higher 

voltage than 90% of rated values. (Equal or higher than 85% of rated value for AC models). 

For applications where the pressure and voltage are outside the indicated limits, compressor 

start is not guaranteed. 

Table 39 Pressure limit value 

APPLICATION 

TYPE 

LBP 

MBP 

HBP 

STARTING 

TORQUE TYPE 

LST 

HST 

LST 

HST 

AC HST/LST 

7.1.7 Oil cooler temperatures 

REFRIGERANT 

TYPE 

GAUGE PRESSURE 

SUCTION DISCHARGE 

Kg/cm 2 

Kg/cm 2 

bar bar 

R134a 5.1 5.0 5.1 5.0 

R 600a 2.2 2.1 2.2 2.1 

R 22 8.6 8.4 8.6 8.4 

R404A 10.5 10.3 10.5 10.3 

R507 10.9 10.7 10.9 10.7 

R290 7.8 7.4 7.8 7.4 

R134a 1.0 1.0 12.2 11.9 

R600a 0.1 0.1 5.8 5.7 

R22 2.5 2.5 18.4 18.1 

R404A 3.3 3.3 22.0 21.5 

R507 3.5 3.4 22.6 22.2 

R290 2.4 2.4 16.1 15.8 

R134a 12.5 12.3 12.5 12.3 

R600a 2.7 2.6 2.7 2.6 

R 22 10.0 9.8 10.0 9.8 

R404A 12.1 11.9 12.1 11.9 

R507 12.5 12.3 12.5 12.3 

R290 9.0 8.8 9.0 8.8 

R134a 2.9 2.8 13.9 13.6 

R600a 1.0 1.0 6.7 6.6 

R22 5.4 5.3 20.7 20.3 

R404A 6.7 6.6 24.7 24.3 

R507 7.0 6.9 25.4 24.9 

R290 5.0 4.9 18.1 17.7 

R 22 10.9 10.7 10.9 10.7 

R407C 10.7 10.5 10.7 10.5 

PLEASE NOTE: In order to avoid irreparable damages to the compressor, never apply voltage when 

the system is under vacuum. 

Equal inlet and outlet gas temperatures or with a maximum difference of 3 °C. 

We suggest to connect the condenser to the oil cooler at 1/3 of its total length (the final 2/3 

of condenser after oil cooler). 


MP01E 2000-04 0 20-02 82 - 98

7.1.8 Running time 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

7.1.9 Cycling 

 

 

 

 

 

 

 

 

7.2 COMPRESSOR CONTROL PROCEDURES 

 

 

 

 

 

 

 

7.3 TROUBLESHOOTING AND SERVICE CHART 

 

 

 

 

 

 

 

 

 

 


Table 40 Troubleshooting and service chart 

COMPRESSORS 

HANDBOOK 

Chapter 


PR0BLEM POSSIBLE CAUSE REPAIR 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


7.4 ELECTRIC CIRCUITS CONTROL 

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLEASE NOTE: Wiring carried out differently from the ones indicated on the Compressor Handbook 

may require a different check procedure and measurement from the one indicated. 

7.4.1 Standard version RSIR - RSCR EM Series with PTC starting device 

(Refer to the RSIR and RSCR electric diagrams represented in Figure 9, page 24) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 


7.4.2 Standard version RSIR - RSCR EM Series with PTC starting device 

(Refer to the RSIR e RSCR electric diagrams represented on Figure 10, page 24) 

Verify with a voltmeter the presence of the correct voltage on the “L” and “N” terminals of the 

PTC starting device. If there is insufficient voltage, the thermostat is defective due to open contacts, 

connections, or an interruption in the cables. 

Disconnect the other electrical components if present (motor fan, gear motor, etc.), disconnect 

the voltage to the circuit at the supply line, and carry out the following operations and checks: 

1. Check the continuity on the terminals L3 of PTC starting device. If continuity lack,s the thermostat 

must be replaced due to open contacts. 

2. Take off the PTC starting device from the hermetic terminal. 

3. If there is a run capacitor (RSCR version) disconnect it. 

4. Take off the protector from the PTC starting device and check between points 1 and 3. If there 

is no continuity, be sure that the protector has no open contacts due to its trip. In this case, 

repeat the check after about 10 minutes. Otherwise, the protector is defective due to open contacts. 

5. Check the electric motor according to the procedure described in par.7.5.1. 

6. Check the ohmic resistance of the stator run and start windings according to the procedure 

described in par.7.5.2. 

7. On the PTC starting device check between the two fastons N and 2, the ohmic resistance of 

the PTC pill which must be 8÷16 for the 230V model and 2÷4 for the 115V model, at 

the ambient temperature of 25 °C. (CAUTION: the ohmic resistance values measured with a 

normal tester can be out of the indicated by as much as 25% ÷ 30%). 

8. If there is a run capacitor (RSCR version), check it according to the procedure described in 

section 7.5.3. 

If from all the above checks no problem was found, there is no capillary clogging and the system 

does not yet run correctly, replace the compressor. 

7.4.3 Standard version RSIR NB - NE - NT - T Series with electromagnetic 

current relay 

(Refer to the RSIR electric diagram represented in Figure 11, page 25) 

PLEASE NOTE: The contacts of the starting relay are normally open. 

Verify with a voltmeter the presence of the correct voltage on terminals “1” of relay and “3” of 

protector. If there is insufficient voltage, the thermostat is defective due to open contacts, connections, 

or there is an interruption in the cables. 

Disconnect the other electric components if present (motor fan, gear motor, etc.), disconnect the 

voltage to the circuit at the supply line, and carry out the following operations and checks: 

1. Check the continuity between the points “1” - “3” of protector: If there is no continuity, be 

sure that the protector has no open contacts due to its trip. In this case, repeat the check after 

about 10 minutes. 

2. Take off the start relay from the hermetic terminal and keeping it in the same vertical position, 

(do not incline or overturn) carry out the following continuity checks. 

3. Between the terminals “1” and “S” on the relay: If there no continuity the relay is faulty due 

to closed contacts. 


MP01E 2000-04 0 20-02 88 - 98

COMPRESSORS 

HANDBOOK 

Chapter 


4. Between the terminals “1” and “R” of relay: If there is no continuity the relay has an open 

coil. 

5. Check the electric motor according to the procedure described in par. 7.5.1. 


described in par. 7.5.2. 

If from all above checks, no problem was found, there is no capillary clogging, and the system 

does not yet run correctly, replace the starting relay, excluding possible faults of contacts opening 

and closing (pick-up and drop-out current) that can not to be determined with above checks. 

If the compressor does not yet run correctly, it must be replaced due to internal defects. 

7.4.4 Standard version CSIR NB - NE - NT Series with electromagnetic current 

relay 

(Refer to the electric diagram CSIR represented in Figure 11, page 25) 

PLEASE NOTE: The contacts of starting relay are normally open. 

Verify with a voltmeter the presence of the correct voltage on the terminals 2 of relay and 3 of 

protector. If there is insufficient voltage, the thermostat is defective due to open contacts, connections, 

or there is an interruption in the cables. Disconnect the other electric components if 

present (motor fan, gear motor, etc.), disconnect the voltage to the circuit at the supply line and 

carry out the following operations and checks: 

1. Check the continuity between the points 1 and 3 of the protector. If continuity lacks, be sure 

that the protector has no open contacts due to its trip. In this case repeat the check after about 

10 minutes. 

2. Take off the start relay from the hermetic terminal and keep it in the same vertical position 

(do not incline or overturn). Carry out the following continuity checks: 

3. Between the terminals 1 and S on the relay: if there is continuity the relay is faulty due to 

closed contacts. 

4. Between the terminals 2 and R of relay: if there is no continuity the relay coil is open. 

5. Check the electric motor according to the procedure described in section 7.5.1. 


described on section 7.5.2. 

7. Check the start capacitor according to the procedure indicated on section 7.5.3. 

If from all the above checks, a problem was not found, there is no clogging in the expansion device 

and the system does not yet run correctly, replace the starting relay, excluding possible faults 

of the contacts opening and closing (pick-up and drop-out currents) that can not be determined 

with above checks. 



MP01E 2000-04 0 20-02 89 - 98

COMPRESSORS 

HANDBOOK 

Chapter 


7.4.5 Terminal board version RSIR NB - NE - T Series with electromagnetic 

current relay 

(For T Series, refer to the RSIR electric diagram represented in Figure 12, page 25) 

(For NB-NE Series, refer to the RSIR electric diagram represented in Figure 13, page 26) 


Verify with a voltmeter the presence of the correct voltage on the terminals “1” and “N” of the 

terminal board. If there is insufficient voltage, the thermostat is defective due to open contacts, 

connections, or there is an interruption in the cables. 

Disconnect the other electric components if present (motor fan, gear motor, etc.), disconnect the 

voltage to the circuit at the supply line and carry out the following operations and checks: 

1. Remove the terminal board, take off the starting relay and disconnect the protector cable from 

the hermetic terminal. 

2. Protector: Check the continuity between the points “1” of protector, and “1” of terminal 

board. If there is no continuity, the protector can be: 

faulty due to open contacts 

tripped; then repeat the check after about 10 minutes 

not connected to the terminal board. 

3. Keep the start relay in the same vertical position as assembled on the hermetic terminal (do 

not incline or overturn), and carry out the following continuity checks: 

4. Between the terminals “N” on the terminal board and “S” on the relay: if there is continuity 

the relay is defective due to closed contacts. 

5. Between the terminals “N” on the terminal board and “R” of relay: if there is no continuity, 

the defect can be due to: 

relay with open coil 

relay not connected to the terminal board. 

6. Check the electric motor according to the procedure described on section 7.5.1. 


described in section 7.5.2. 

If from all above checks, a problem was not found, there is no capillary clogging, and the system 

does not yet run correctly, replace the starting relay, excluding possible faults of contacts opening 

and closing (pick-up and drop-out currents) that can not be determined with above checks. 


7.4.6 Terminal board version CSIR NB - NE - NT - T Series with electromagnetic 

current relay 

(For T Series, refer to the electric diagram CSIR represented on Figure 12, page 25) 

(For NB-NE Series, refer to the electric diagram CSIR represented on Figure 13, page 26) 

PLEASE NOTE: The contacts of starting relay are normally open. 

Disconnect the other electric components if present (motor fan, gear motor, etc.), disconnect 



MP01E 2000-04 0 20-02 90 - 98

COMPRESSORS 

HANDBOOK 

Chapter 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.4.7 Terminal board version RSIR and RSCR NB Series with PTC starting 

device 

(Refer to the electric diagrams RSIR and RSCR PTC represented on Figure 14, page 26) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


COMPRESSORS 

HANDBOOK 

Chapter 


7. On PTC starting device check, between the two faston terminals 1 and 3 the ohmic resistance 

of the PTC pill which must be 8÷16 for the model at 230V and 2÷4 for the model at 

115V, at the ambient temperature of 25 °C. 

8. If there is the run capacitor (RSCR version), check it according to the procedure described in 

par. 7.5.3. 

If from all the above checks, no problem was found, there is no capillary clogging and the system 

does not yet run correctly, replace the compressor. 

7.4.8 Standard version PSC NE - NT - NJ Series 

(Refer to the electric diagrams PSC represented on Figure 15, page 27) 

Verify with a voltmeter the presence of the correct voltage between the terminals R and C of the 

hermetic terminal (version with internal protector), or between R on hermetic terminal, and 1 on 

external overload protector. If there is insufficient voltage, the thermostat is faulty due to open 

contacts or there is an interruption on the cables or on the connections. 

Disconnect the other electric components if present (motor fan, gear motor, etc.), interrupt voltage 

to the circuit atom the supply line, and carry out the following operations and checks: 

1. If there is an external overload protector, check the continuity between points 1 and 3. If there 

is no continuity, the protector can be faulty, or there could have been a trip, so repeat the 

check after about 10 minutes. 




4. Check the run capacitor according to the procedure indicated in section 7.5.3. 

If from all above checks, no problem was found, there are no clogging in the expansion device, 

and the system does not yet run correctly, replace the compressor. 

7.4.9 Standard versions CSR - CSR BOX NE - NT - NJ Series with potential 

current relay 

(Refer to the electric diagrams CSR represented in Figure 15, page 27) 

(Refer to the electric diagrams CSR BOX represented in Figure 16, page 27) 

Verify with a voltmeter the presence of the correct voltage on the terminals 4 and 5 of the starting 

relay. If there is insufficient voltage, the thermostat is faulty due to open contacts, connections, 

or there is an interruption in the cables. 

Disconnect the other electric components if present (motor fan, gear motor, etc.), interrupt the 

voltage to the circuit disconnecting it from the supply line and carry out the following operations 

and checks: 

1. Disconnect all the connections on terminals 2 and 5 of the starting relay. 

2. Check the continuity between terminals 2 and 5 of the starting relay. If there is no continuity, 

there is a broken coil and the relay must be replaced. 

3. Check the continuity between the terminals 1 and 2 of the starting relay. If there is no continuity, 

the contact is open and the relay must be replaced. 

4. If there is an external overload protector, check, according to the type, the continuity between 

the terminals 1 and 3 or 1 and 2. If there is no continuity, the protector can be faulty or there 

could have been a trip, so repeat the check after about 10 minutes. 


MP01E 2000-04 0 20-02 92 - 98

COMPRESSORS 

HANDBOOK 

Chapter 





7. Disconnect one of the two cables of the starting capacitor. 

8. Check the start and run capacitors according to the procedure described in section 7.5.3. 

9. Check the continuity of the cables disconnected from the 2 and 5 terminals of the starting relay. 

If from all above checks, no problem was found, there is no clogging in the expansion device, 

and the system does not yet run correctly, replace the starting relay, excluding possible mistakes 

of opening and closing of the contacts (pick-up and drop-out currents) that can not be found with 

above checks. 


7.4.10 Standard versions CSIR and CSIR BOX NT and NJ Series with current 

electromagnetic relay 

(Refer to electric diagrams CSIR represented on Figure 17, page 28) 

(Refer to electric diagrams CSIR BOX represented on Figure 18, page 28) 


Verify with a voltmeter the presence of the correct net voltage on the terminals 3 and 5 of the 

starting relay. If there is insufficient voltage, the thermostat is defective due to open contacts, 

connections, or there is a break in the cables. 

Disconnect the other electric components, if present (motor fan, gear-motor, etc.), interrupt the 


1. Disconnect all connections on terminal 3 of the starting relay. 

2. Keeping the start relay in the same vertical position as assembled on the hermetic terminal 

(do not incline or overturn), carry out the following continuity checks: 

3. Check the continuity between the terminals 3 and 4 of the starting relay. If there is no continuity, 

the coil is interrupted and the relay must be replaced. 

4. Check the continuity between the terminals 1 and 2 of the starting relay. If there is continuity, 

the contact is closed and the relay must be replaced. 

5. Check the protector continuity between points 1 and 3. If there is no continuity, the protector 

can be: 

defective 

tripped; then repeat the check after about 10 minutes. 

6. Check the electric motor according to the procedure described in section. 7.5.1. 

7. Check the ohmic resistance of the stator start and run windings according to the procedure 


8. Check the start capacitor according to the procedure indicated in section 7.5.3. 

9. Check the continuity of the cables disconnected from terminal 3 of the start relay. 

If from all above checks, no problem was found, there is no clogging in the expansion device, 

and the system does not yet run correctly, replace the starting relay, excluding possible mistakes 

of opening and closing of the contacts (pick-up and drop-out currents) that can not be found with 


MP01E 2000-04 0 20-02 93 - 98

above checks. 

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If the compressor does not yet run correctly it must be replaced due to an internal defects. 

7.4.11 Standard version CSIR NJ Series with current electromagnetic relay 

(Refer to the electric wiring CSIR BOX represented in Figure 19, page 29) 

Verify with a voltmeter the correct voltage on the terminals 4 and 5 of the starting relay. If there 

is insufficient voltage, the thermostat is defective due to open contacts, connections, or there is 

an interruption in the cables. 

Disconnect the other electric components if present (motor fan, motor-gear, etc.), interrupt the 


1. Disconnect all the connections on terminals 2 and 5 of the starting relay. 

2. Check the continuity between terminals 2 and 5 of the starting relay. If there is no continuity, 

there is an interruption on the coil and the relay must be replaced. 

3. Check the continuity between the terminals 1 and 2 of the starting relay. If there is continuity, 

the contact is open and the relay must be replaced. 

4. Check the protector the continuity between the points 1 and 3. If there is no continuity, the 

protector can be defective or tripped, then repeat the check after about 10 minutes. 




7. Check the start capacitor according to the procedure described in section 7.5.3. 

8. Check the continuity of the cables disconnected from the terminals 2 and 5 of the start relay. 

If from all above checks, no problem was found, there is no clogging in the expansion device and 

the system does not yet run correctly, replace the starting relay, excluding possible mistakes of 

opening and closing of the contacts (pick-up and drop-out currents) that cannot be determined 

with above checks. 

If the compressor does not yet run correctly it must be replaced due to an internal defects. 

7.4.12 Three-Phase Version NJ 

(Refer to the electric wiring THREE-PHASE represented in Figure 20, page 29) 

Verify with a voltmeter the presence of the correct voltage of the three phases, on the three pins 

of the hermetic terminal. If there is insufficient voltage, check the presence of a break on the contacts 

of relay, cables and connections. 

Disconnect the other electric components if present (motor fan, motor-gear, etc.), interrupt the 

voltage to the circuit at the supply line, and carry out the following checks: 

1. Check the continuity of the windings of the three phase electric motor, among the pins of the 

hermetic terminal (3 measures carried out between 2 pins at a time). The lack of continuity 

indicates an interruption in the electric motor winding. 

2. Check the continuity among the three pins of the hermetic terminal and the ground plate on 

the compressor. If there is continuity, the electric motor has the windings shorted. 

3. Check with a suitable instrument the ohmic resistance of the three phases of the stator windings, 

through the three pins of the hermetic terminal on the compressor. 


MP01E 2000-04 0 20-02 94 - 98

COMPRESSORS 

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Chapter 


 

 

 

 

PLEASE NOTE: Each of the three phases can have different ohmic resistance values. 

 

 

 

7.5 CONTROL PROCEDURES 

7.5.1 Control of electric motor stator windings 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.5.2 Control of stator windings ohmic resistance 

 

 

 

 

 

 

7.5.3 Control of start and run capacitors 

 

 

 

 

 

 

 

 

With ohmmeter scale R x 10: 

 


 

 


 

 


COMPRESSORS 

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Chapter 

HOW TO RETURN SUPPLIED PRODUCTS TO EMBRACO EUROPE 

8 HOW TO RETURN SUPPLIED PRODUCTS 

TO EMBRACO EUROPE 

8.1 CONDITIONS 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Return of rejected product”: 

 

 

 

 

 

“Sending for destructive tests”: 

 

 

 

PLEASE NOTE: Due to administrative reasons, never indicate on the delivery note “in vision account” 

or ”in pending account”. 

 

 

 

 

“Returned material not corresponding to the order”, 

 

“Returned material in quantity exceeding the order”, 

 

 

 

 

• The compressors must: 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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HANDBOOK 

Chapter 


• Do not return defective compressors as a consequence of mishandling. 

Do not return open compressors or tampered components. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.2 TESTS ON THE CUSTOMER APPLICATIONS 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“For destructive tests” 

 

 

PLEASE NOTE: THE TRANSPORT EXPENSES ARE CHARGED TO THE CUSTOMER 

 

 

PLEASE NOTE: THE TEST RESULTS CANNOT BE USED IN CASE OF CONTROVERSY AND ACTIONS 

BROUGHT AGAINST A THIRD PARTY, UNLESS THERE IS A WRITTEN AUTHORIZATION FROM EMBRACO 

EUROPE Srl. 


COMPRESSORS 

HANDBOOK 

Chapter 



Rui Barbosa, 1020 - P.O. BOX 91 

89219-901 - Joinville - SC - Brazil 

Phone: +55 47 3441-2121 

Fax: +55 47 3441-2780 

^ 

Code MP01EH - Date February 2010 - Version 07 - Subject to alteration without previous notice

Compressor Handbook - Embraco

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